ExecutionEngine Exception -> Code sample that triggers EEE

[TT (Tom Tempelaere)]

Hi people,

The code that follows throws an ExecutionEngine Exception. This was written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE 7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program on a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb RAM.
The code is a single form that when run throws an ExecutionEngine Exception in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or point it
out to MS.NET developers I'd be grateful. If more information is needed I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor = System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.

[Bob Powell [MVP]]

I'll make sure someone sees this.
Thanks.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:81******** *************** ***********@mic rosoft.com...

Hi people,

The code that follows throws an ExecutionEngine Exception. This was written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE 7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program on
a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb
RAM.
The code is a single form that when run throws an ExecutionEngine Exception
in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or point
it
out to MS.NET developers I'd be grateful. If more information is needed I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn
dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new
System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.

[TT (Tom Tempelaere)]

Hi Bob,

After experimenting on other PC's we noticed that on one PC the exception
didn't trigger. We compared them, and noticed that one was running XP/SP2
with .NET 1.1/SP1. I'm going to upgrade the .NET framework and see if this
still occurs, but it looks like it got solved already. I'll test this further
and post my findings...

Thanks & kind regards,
--
Tom Tempelaere.
"Bob Powell [MVP]" wrote:

I'll make sure someone sees this.
Thanks.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:81******** *************** ***********@mic rosoft.com...

Hi people,

The code that follows throws an ExecutionEngine Exception. This was written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE 7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program on
a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb
RAM.
The code is a single form that when run throws an ExecutionEngine Exception
in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or point
it
out to MS.NET developers I'd be grateful. If more information is needed I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn
dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new
System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.

[Bob Powell [MVP]]

While checking this to see if I could reproduce the problem using your code
I have generated log entries of many thousands of lines and no EEE so-far.
How many entries do you generate before it crashes?

If I can generate the error I'll escalate it...

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:81******** *************** ***********@mic rosoft.com...

Hi people,

The code that follows throws an ExecutionEngine Exception. This was written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE 7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program on
a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb
RAM.
The code is a single form that when run throws an ExecutionEngine Exception
in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or point
it
out to MS.NET developers I'd be grateful. If more information is needed I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn
dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new
System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.

[Bob Powell [MVP]]

Ahh, Hi, I saw this after I posted the other reply. Let me know how your
results go. If this is old news we shouldn't worry too much.

Bob.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:F5******** *************** ***********@mic rosoft.com...

Hi Bob,

After experimenting on other PC's we noticed that on one PC the exception
didn't trigger. We compared them, and noticed that one was running XP/SP2
with .NET 1.1/SP1. I'm going to upgrade the .NET framework and see if this
still occurs, but it looks like it got solved already. I'll test this
further
and post my findings...

Thanks & kind regards,
--
Tom Tempelaere.
"Bob Powell [MVP]" wrote:

I'll make sure someone sees this.
Thanks.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message
news:81******** *************** ***********@mic rosoft.com...

> Hi people,
>
> The code that follows throws an ExecutionEngine Exception. This was
> written
> in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE
> 7.1
> (7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program
> on
> a
> Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with
> 2Gb
> RAM.
> The code is a single form that when run throws an
> ExecutionEngine Exception
> in
> 'AddRowsToTable '.
>
> If someone with more knowledge on this matter could help me out, or
> point
> it
> out to MS.NET developers I'd be grateful. If more information is needed
> I
> will be glad to supply it. Here goes:
>
> using System;
> using System.Drawing;
> using System.Collecti ons;
> using System.Componen tModel;
> using System.Windows. Forms;
> using System.Data;
>
> namespace Test_EEE_bug
> {
> public class Form1 : System.Windows. Forms.Form
> {
> private DataTable dtSource = new DataTable( "Entries" );
> private ArrayList logQueue = null;
> private System.Timers.T imer logTimer = null;
> private readonly object logLock = new object( );
> private System.Threadin g.Thread workerThread = null;
> private int counter = 0;
>
> private System.Windows. Forms.DataGrid dataGrid1;
> private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
> private System.Windows. Forms.DataGridT extBoxColumn
> dataGridTextBox Column1;
> private System.Componen tModel.Containe r components = null;
>
> private delegate void SimpleHandler( );
> private delegate void AddRowsToTableH andler( DataRow[] drs );
>
> public Form1()
> {
> InitializeCompo nent();
>
> DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
> dtColumn.ReadOn ly = true;
> dtSource.Column s.Add( dtColumn );
> dataGrid1.SetDa taBinding( dtSource, null );
>
> logQueue = new ArrayList( );
>
> logTimer = new System.Timers.T imer( );
> logTimer.AutoRe set = false;
> logTimer.Interv al = 250;
> logTimer.Synchr onizingObject = null;
> logTimer.Elapse d += new
> System.Timers.E lapsedEventHand ler(logTimer_El apsed);
> logTimer.Enable d = true;
> }
>
> private void OnLoad(object sender, System.EventArg s e)
> {
> SpawnThread( );
> }
>
> private void SpawnThread()
> {
> workerThread = new System.Threadin g.Thread( new
> System.Threadin g.ThreadStart( WorkingThread ) );
> workerThread.St art( );
> }
>
> private void WorkingThread( )
> {
> try
> {
> for( int i = 0; i != 8; ++i )
> Write( "Log line " + ++counter );
> }
> finally
> {
> this.BeginInvok e( new SimpleHandler( SpawnThread ) );
> }
> }
>
> public void Write( string text )
> {
> lock( logLock )
> logQueue.Add( text );
> }
>
> private void logTimer_Elapse d(object sender,
> System.Timers.E lapsedEventArgs e)
> {
> ArrayList writeOutQueue = null;
> lock( logLock )
> if( logQueue.Count != 0 )
> {
> writeOutQueue = logQueue;
> logQueue = new ArrayList( );
> }
>
> if( writeOutQueue == null )
> logTimer.Enable d = true;
> else
> {
> ArrayList dataRows = new ArrayList( );
>
> for( int i = 0; i != writeOutQueue.C ount; ++i )
> {
> DataRow dr1 = dtSource.NewRow ( );
> dr1[ "Text" ] = writeOutQueue[ i ];
> dataRows.Add( dr1 );
> }
>
> BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new
> object[]{
> (DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
> }
> }
>
> private void AddRowsToTable( DataRow[] drs )
> {
> dataGrid1.Suspe ndLayout( );
> dtSource.BeginL oadData( );
>
> foreach( DataRow dr in drs )
> dtSource.Rows.A dd( dr );
>
> dtSource.EndLoa dData( );
> dataGrid1.Resum eLayout( );
>
> logTimer.Enable d = true;
> }
>
> protected override void Dispose( bool disposing )
> {
> if( disposing )
> {
> if (components != null)
> {
> components.Disp ose();
> }
> }
> base.Dispose( disposing );
> }
>
> #region Windows Form Designer generated code
> private void InitializeCompo nent()
> {
> this.dataGrid1 = new System.Windows. Forms.DataGrid( );
> this.dataGridTa bleStyle1 = new
> System.Windows. Forms.DataGridT ableStyle();
> this.dataGridTe xtBoxColumn1 = new
> System.Windows. Forms.DataGridT extBoxColumn();
>
> ((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
> this.SuspendLay out();
> //
> // dataGrid1
> //
> this.dataGrid1. DataMember = "";
> this.dataGrid1. HeaderForeColor =
> System.Drawing. SystemColors.Co ntrolText;
> this.dataGrid1. Location = new System.Drawing. Point(8, 8);
> this.dataGrid1. Name = "dataGrid1" ;
> this.dataGrid1. ReadOnly = true;
> this.dataGrid1. Size = new System.Drawing. Size(592, 440);
> this.dataGrid1. TabIndex = 0;
> this.dataGrid1. TableStyles.Add Range(new
> System.Windows. Forms.DataGridT ableStyle[] {
> this.dataGridTa bleStyle1});
> //
> // dataGridTableSt yle1
> //
> this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
> this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
> System.Windows. Forms.DataGridC olumnStyle[] {
>
> this.dataGridTe xtBoxColumn1});
> this.dataGridTa bleStyle1.Heade rForeColor =
> System.Drawing. SystemColors.Co ntrolText;
> this.dataGridTa bleStyle1.Mappi ngName = "";
> this.dataGridTa bleStyle1.ReadO nly = true;
> //
> // dataGridTextBox Column1
> //
> this.dataGridTe xtBoxColumn1.Fo rmat = "";
> this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
> this.dataGridTe xtBoxColumn1.He aderText = "Text";
> this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
> this.dataGridTe xtBoxColumn1.Re adOnly = true;
> this.dataGridTe xtBoxColumn1.Wi dth = 75;
> //
> // Form1
> //
> this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
> this.ClientSize = new System.Drawing. Size(608, 453);
> this.Controls.A dd(this.dataGri d1);
> this.Name = "Form1";
> this.Text = "Form1";
> this.Load += new System.EventHan dler(this.OnLoa d);
>
> ((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
> this.ResumeLayo ut(false);
> }
> #endregion
>
> [STAThread]
> static void Main()
> {
> Application.Run (new Form1());
> }
> }
> }
>
> Kind regards,
> --
> Tom Tempelaere.

[TT (Tom Tempelaere)]

Hi Bob,

Good news, I downloaded and installed .NET 1.1/SP1 and it solved the
problem. Honestly I was not aware that there was a SP1 for .NET 1.1. I find
it weird that the version number did not increase. I wonder, is SP1 for .NET
1.1 automatically installed with XP/SP2?

Kind regards,
--
Tom Tempelaere.
"Bob Powell [MVP]" wrote:

Ahh, Hi, I saw this after I posted the other reply. Let me know how your
results go. If this is old news we shouldn't worry too much.

Bob.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:F5******** *************** ***********@mic rosoft.com...

Hi Bob,

After experimenting on other PC's we noticed that on one PC the exception
didn't trigger. We compared them, and noticed that one was running XP/SP2
with .NET 1.1/SP1. I'm going to upgrade the .NET framework and see if this
still occurs, but it looks like it got solved already. I'll test this
further
and post my findings...

Thanks & kind regards,
--
Tom Tempelaere.
"Bob Powell [MVP]" wrote:

I'll make sure someone sees this.
Thanks.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message
news:81******** *************** ***********@mic rosoft.com...
> Hi people,
>
> The code that follows throws an ExecutionEngine Exception. This was
> written
> in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE
> 7.1
> (7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program
> on
> a
> Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with
> 2Gb
> RAM.
> The code is a single form that when run throws an
> ExecutionEngine Exception
> in
> 'AddRowsToTable '.
>
> If someone with more knowledge on this matter could help me out, or
> point
> it
> out to MS.NET developers I'd be grateful. If more information is needed
> I
> will be glad to supply it. Here goes:
>
> using System;
> using System.Drawing;
> using System.Collecti ons;
> using System.Componen tModel;
> using System.Windows. Forms;
> using System.Data;
>
> namespace Test_EEE_bug
> {
> public class Form1 : System.Windows. Forms.Form
> {
> private DataTable dtSource = new DataTable( "Entries" );
> private ArrayList logQueue = null;
> private System.Timers.T imer logTimer = null;
> private readonly object logLock = new object( );
> private System.Threadin g.Thread workerThread = null;
> private int counter = 0;
>
> private System.Windows. Forms.DataGrid dataGrid1;
> private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
> private System.Windows. Forms.DataGridT extBoxColumn
> dataGridTextBox Column1;
> private System.Componen tModel.Containe r components = null;
>
> private delegate void SimpleHandler( );
> private delegate void AddRowsToTableH andler( DataRow[] drs );
>
> public Form1()
> {
> InitializeCompo nent();
>
> DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
> dtColumn.ReadOn ly = true;
> dtSource.Column s.Add( dtColumn );
> dataGrid1.SetDa taBinding( dtSource, null );
>
> logQueue = new ArrayList( );
>
> logTimer = new System.Timers.T imer( );
> logTimer.AutoRe set = false;
> logTimer.Interv al = 250;
> logTimer.Synchr onizingObject = null;
> logTimer.Elapse d += new
> System.Timers.E lapsedEventHand ler(logTimer_El apsed);
> logTimer.Enable d = true;
> }
>
> private void OnLoad(object sender, System.EventArg s e)
> {
> SpawnThread( );
> }
>
> private void SpawnThread()
> {
> workerThread = new System.Threadin g.Thread( new
> System.Threadin g.ThreadStart( WorkingThread ) );
> workerThread.St art( );
> }
>
> private void WorkingThread( )
> {
> try
> {
> for( int i = 0; i != 8; ++i )
> Write( "Log line " + ++counter );
> }
> finally
> {
> this.BeginInvok e( new SimpleHandler( SpawnThread ) );
> }
> }
>
> public void Write( string text )
> {
> lock( logLock )
> logQueue.Add( text );
> }
>
> private void logTimer_Elapse d(object sender,
> System.Timers.E lapsedEventArgs e)
> {
> ArrayList writeOutQueue = null;
> lock( logLock )
> if( logQueue.Count != 0 )
> {
> writeOutQueue = logQueue;
> logQueue = new ArrayList( );
> }
>
> if( writeOutQueue == null )
> logTimer.Enable d = true;
> else
> {
> ArrayList dataRows = new ArrayList( );
>
> for( int i = 0; i != writeOutQueue.C ount; ++i )
> {
> DataRow dr1 = dtSource.NewRow ( );
> dr1[ "Text" ] = writeOutQueue[ i ];
> dataRows.Add( dr1 );
> }
>
> BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new
> object[]{
> (DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
> }
> }
>
> private void AddRowsToTable( DataRow[] drs )
> {
> dataGrid1.Suspe ndLayout( );
> dtSource.BeginL oadData( );
>
> foreach( DataRow dr in drs )
> dtSource.Rows.A dd( dr );
>
> dtSource.EndLoa dData( );
> dataGrid1.Resum eLayout( );
>
> logTimer.Enable d = true;
> }
>
> protected override void Dispose( bool disposing )
> {
> if( disposing )
> {
> if (components != null)
> {
> components.Disp ose();
> }
> }
> base.Dispose( disposing );
> }
>
> #region Windows Form Designer generated code
> private void InitializeCompo nent()
> {
> this.dataGrid1 = new System.Windows. Forms.DataGrid( );
> this.dataGridTa bleStyle1 = new
> System.Windows. Forms.DataGridT ableStyle();
> this.dataGridTe xtBoxColumn1 = new
> System.Windows. Forms.DataGridT extBoxColumn();
>
> ((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
> this.SuspendLay out();
> //
> // dataGrid1
> //
> this.dataGrid1. DataMember = "";
> this.dataGrid1. HeaderForeColor =
> System.Drawing. SystemColors.Co ntrolText;
> this.dataGrid1. Location = new System.Drawing. Point(8, 8);
> this.dataGrid1. Name = "dataGrid1" ;
> this.dataGrid1. ReadOnly = true;
> this.dataGrid1. Size = new System.Drawing. Size(592, 440);
> this.dataGrid1. TabIndex = 0;
> this.dataGrid1. TableStyles.Add Range(new
> System.Windows. Forms.DataGridT ableStyle[] {
> this.dataGridTa bleStyle1});
> //
> // dataGridTableSt yle1
> //
> this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
> this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
> System.Windows. Forms.DataGridC olumnStyle[] {
>
> this.dataGridTe xtBoxColumn1});
> this.dataGridTa bleStyle1.Heade rForeColor =
> System.Drawing. SystemColors.Co ntrolText;
> this.dataGridTa bleStyle1.Mappi ngName = "";
> this.dataGridTa bleStyle1.ReadO nly = true;
> //
> // dataGridTextBox Column1
> //
> this.dataGridTe xtBoxColumn1.Fo rmat = "";
> this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
> this.dataGridTe xtBoxColumn1.He aderText = "Text";
> this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
> this.dataGridTe xtBoxColumn1.Re adOnly = true;
> this.dataGridTe xtBoxColumn1.Wi dth = 75;
> //
> // Form1
> //
> this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
> this.ClientSize = new System.Drawing. Size(608, 453);
> this.Controls.A dd(this.dataGri d1);
> this.Name = "Form1";
> this.Text = "Form1";
> this.Load += new System.EventHan dler(this.OnLoa d);
>
> ((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
> this.ResumeLayo ut(false);
> }
> #endregion
>
> [STAThread]
> static void Main()
> {
> Application.Run (new Form1());
> }
> }
> }
>
> Kind regards,
> --
> Tom Tempelaere.

[Willy Denoyette [MVP]]

Tom, Bob,
How did you manage to run this?
Running this program using v2.0 of the framework doesn't even get a chance
to paint the initial grid, on v1.1 the initial grid is painted but after
that the UI gets non respondive so I can't even scroll. (note both are run
on a very fast system).

The reason is simple, this:

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
BeginInvoke( new SimpleHandler( SpawnThread ) );
}
}

is respawning a thread at such a high rate that it saturates the CPU, more
,the SpawnThread function is marshaled to the UI thread, so it posts
messages at such a high rate that the essage queue overflows, input and
paint messages don't even get a chance to be picked up in a timely fashion
or are completely lost.
And... it deadlocks when run on a dual proc.

Question to Tom, is this sample illustrative for your program design?

Willy.
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:u4******** ******@TK2MSFTN GP11.phx.gbl...

While checking this to see if I could reproduce the problem using your
code I have generated log entries of many thousands of lines and no EEE
so-far. How many entries do you generate before it crashes?

If I can generate the error I'll escalate it...

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message
news:81******** *************** ***********@mic rosoft.com...

Hi people,

The code that follows throws an ExecutionEngine Exception. This was
written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE 7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program on
a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb
RAM.
The code is a single form that when run throws an
ExecutionEngine Exception in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or point
it
out to MS.NET developers I'd be grateful. If more information is needed I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn
dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new
object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new
System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.

[TT (Tom Tempelaere)]

Hi Willy,

The UI is semi-reponsive but of course this snippet isn't representative for
the program I am writing. With semi-responsive I mean that UI interaction is
veeery slow, but I notice that the screen is still updated. After about 30000
lines, it gets even slower but still there is some response. After some more
waiting the program becomes nearly unresponsive but I notice that the UI is
still updated.

I just tried to make a program that triggered the ExecutionEngine Exception
and it did for .NET 1.1 without SP1. I didn't bother to write something that
made real sense.

The 'spawned' thread is actually a placeholder for the main thread in my
application. It is not supposed to finish as quick as the thread I wrote in
this test program. But in some circumstances it can terminate and then this
thread should be restarted.

What bothers me though is the deadlock situation you mention on dual
processor system. Would this be because the UI message queue is overflowing?
Does it still deadlock when you put a Sleep before invoking the SpawnThread?
There is only one 'lock'-object in the test program and I don't think that
can cause a deadlock situation... Perhaps this test-program stresses the
OS/framework to its limits?

Thanks for the input, and kind regards,
--
Tom Tempelaere.

"Willy Denoyette [MVP]" wrote:

Tom, Bob,
How did you manage to run this?
Running this program using v2.0 of the framework doesn't even get a chance
to paint the initial grid, on v1.1 the initial grid is painted but after
that the UI gets non respondive so I can't even scroll. (note both are run
on a very fast system).

The reason is simple, this:

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
BeginInvoke( new SimpleHandler( SpawnThread ) );
}
}

is respawning a thread at such a high rate that it saturates the CPU, more
,the SpawnThread function is marshaled to the UI thread, so it posts
messages at such a high rate that the essage queue overflows, input and
paint messages don't even get a chance to be picked up in a timely fashion
or are completely lost.
And... it deadlocks when run on a dual proc.

Question to Tom, is this sample illustrative for your program design?

Willy.
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:u4******** ******@TK2MSFTN GP11.phx.gbl...

While checking this to see if I could reproduce the problem using your
code I have generated log entries of many thousands of lines and no EEE
so-far. How many entries do you generate before it crashes?

If I can generate the error I'll escalate it...

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message
news:81******** *************** ***********@mic rosoft.com...

Hi people,

The code that follows throws an ExecutionEngine Exception. This was
written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE 7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program on
a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb
RAM.
The code is a single form that when run throws an
ExecutionEngine Exception in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or point
it
out to MS.NET developers I'd be grateful. If more information is needed I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn
dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new
object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new
System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);
((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.

[Willy Denoyette [MVP]]

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message news:0A******** *************** ***********@mic rosoft.com...

Hi Willy,

The UI is semi-reponsive but of course this snippet isn't representative
for
the program I am writing. With semi-responsive I mean that UI interaction
is
veeery slow, but I notice that the screen is still updated. After about
30000
lines, it gets even slower but still there is some response. After some
more
waiting the program becomes nearly unresponsive but I notice that the UI
is
still updated.

It is 'semi responsive' when I run this on a slower system, but it's not
responsive at all when I ran this on a fast system, moreover it dealocks on
a dual proc athlon. The point is that the message queue overflows before the
first paint message on a fast system, anyway your problems is due to the
fact that the UI thread is flooded with messages to create new Threads and
because that code (your SpawnThread() function
) runs on the UI thread.
I just tried to make a program that triggered the ExecutionEngine Exception
and it did for .NET 1.1 without SP1. I didn't bother to write something
that
made real sense.

The 'spawned' thread is actually a placeholder for the main thread in my
application. It is not supposed to finish as quick as the thread I wrote
in
this test program. But in some circumstances it can terminate and then
this
thread should be restarted.

What bothers me though is the deadlock situation you mention on dual
processor system. Would this be because the UI message queue is
overflowing?
Does it still deadlock when you put a Sleep before invoking the
SpawnThread?
No, it doesn't deadlock with a sleep call. But I can't debug this stuff,
because when I start this from the debugger it doesn't deadlock.
There is only one 'lock'-object in the test program and I don't think that
can cause a deadlock situation... Perhaps this test-program stresses the
OS/framework to its limits?

Yes, your problem is two fold and related , you create threads at a too high
rate and you post messages (the marshaled calls to the UI thread) at such
high rate that the windows queue probably overflows (not sure though) before
the first paint message arrives. This is really something you won't do in a
real world application do you?
Willy.

[Bob Powell [MVP]]

It ran fine for me but I'm running a productionn machine with .NET 1.1 on
board. All my 2.0 setups are on VM's

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"Willy Denoyette [MVP]" <wi************ *@telenet.be> wrote in message
news:eP******** ******@tk2msftn gp13.phx.gbl...

Tom, Bob,
How did you manage to run this?
Running this program using v2.0 of the framework doesn't even get a chance
to paint the initial grid, on v1.1 the initial grid is painted but after
that the UI gets non respondive so I can't even scroll. (note both are run
on a very fast system).

The reason is simple, this:

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
BeginInvoke( new SimpleHandler( SpawnThread ) );
}
}

is respawning a thread at such a high rate that it saturates the CPU, more
,the SpawnThread function is marshaled to the UI thread, so it posts
messages at such a high rate that the essage queue overflows, input and
paint messages don't even get a chance to be picked up in a timely fashion
or are completely lost.
And... it deadlocks when run on a dual proc.

Question to Tom, is this sample illustrative for your program design?

Willy.
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:u4******** ******@TK2MSFTN GP11.phx.gbl...

While checking this to see if I could reproduce the problem using your
code I have generated log entries of many thousands of lines and no EEE
so-far. How many entries do you generate before it crashes?

If I can generate the error I'll escalate it...

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"TT (Tom Tempelaere)" <_|\|_0$P@|/\|titi____AThot mailD.Tcom|/\|@P$0_|\|_>
wrote in message
news:81******** *************** ***********@mic rosoft.com...

Hi people,

The code that follows throws an ExecutionEngine Exception. This was
written
in C# (Microsoft Visual C# .NET 69462-335-0000007-18823) using MSDE
7.1
(7.1.3088). The framework is .NET 1.1 (1.1.4322). I tested the program
on a
Windows XP Professional/SP1, with a Pentium 4/2.6Ghz processor, with 2Gb
RAM.
The code is a single form that when run throws an
ExecutionEngine Exception in
'AddRowsToTable '.

If someone with more knowledge on this matter could help me out, or
point it
out to MS.NET developers I'd be grateful. If more information is needed
I
will be glad to supply it. Here goes:

using System;
using System.Drawing;
using System.Collecti ons;
using System.Componen tModel;
using System.Windows. Forms;
using System.Data;

namespace Test_EEE_bug
{
public class Form1 : System.Windows. Forms.Form
{
private DataTable dtSource = new DataTable( "Entries" );
private ArrayList logQueue = null;
private System.Timers.T imer logTimer = null;
private readonly object logLock = new object( );
private System.Threadin g.Thread workerThread = null;
private int counter = 0;

private System.Windows. Forms.DataGrid dataGrid1;
private System.Windows. Forms.DataGridT ableStyle dataGridTableSt yle1;
private System.Windows. Forms.DataGridT extBoxColumn
dataGridTextBox Column1;
private System.Componen tModel.Containe r components = null;

private delegate void SimpleHandler( );
private delegate void AddRowsToTableH andler( DataRow[] drs );

public Form1()
{
InitializeCompo nent();

DataColumn dtColumn = new DataColumn( "Text", typeof(string) );
dtColumn.ReadOn ly = true;
dtSource.Column s.Add( dtColumn );
dataGrid1.SetDa taBinding( dtSource, null );

logQueue = new ArrayList( );

logTimer = new System.Timers.T imer( );
logTimer.AutoRe set = false;
logTimer.Interv al = 250;
logTimer.Synchr onizingObject = null;
logTimer.Elapse d += new
System.Timers.E lapsedEventHand ler(logTimer_El apsed);
logTimer.Enable d = true;
}

private void OnLoad(object sender, System.EventArg s e)
{
SpawnThread( );
}

private void SpawnThread()
{
workerThread = new System.Threadin g.Thread( new
System.Threadin g.ThreadStart( WorkingThread ) );
workerThread.St art( );
}

private void WorkingThread( )
{
try
{
for( int i = 0; i != 8; ++i )
Write( "Log line " + ++counter );
}
finally
{
this.BeginInvok e( new SimpleHandler( SpawnThread ) );
}
}

public void Write( string text )
{
lock( logLock )
logQueue.Add( text );
}

private void logTimer_Elapse d(object sender,
System.Timers.E lapsedEventArgs e)
{
ArrayList writeOutQueue = null;
lock( logLock )
if( logQueue.Count != 0 )
{
writeOutQueue = logQueue;
logQueue = new ArrayList( );
}

if( writeOutQueue == null )
logTimer.Enable d = true;
else
{
ArrayList dataRows = new ArrayList( );

for( int i = 0; i != writeOutQueue.C ount; ++i )
{
DataRow dr1 = dtSource.NewRow ( );
dr1[ "Text" ] = writeOutQueue[ i ];
dataRows.Add( dr1 );
}

BeginInvoke( new AddRowsToTableH andler( AddRowsToTable ), new
object[]{
(DataRow[]) dataRows.ToArra y( typeof(DataRow) ) } );
}
}

private void AddRowsToTable( DataRow[] drs )
{
dataGrid1.Suspe ndLayout( );
dtSource.BeginL oadData( );

foreach( DataRow dr in drs )
dtSource.Rows.A dd( dr );

dtSource.EndLoa dData( );
dataGrid1.Resum eLayout( );

logTimer.Enable d = true;
}

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
private void InitializeCompo nent()
{
this.dataGrid1 = new System.Windows. Forms.DataGrid( );
this.dataGridTa bleStyle1 = new
System.Windows. Forms.DataGridT ableStyle();
this.dataGridTe xtBoxColumn1 = new
System.Windows. Forms.DataGridT extBoxColumn();

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .BeginInit();
this.SuspendLay out();
//
// dataGrid1
//
this.dataGrid1. DataMember = "";
this.dataGrid1. HeaderForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGrid1. Location = new System.Drawing. Point(8, 8);
this.dataGrid1. Name = "dataGrid1" ;
this.dataGrid1. ReadOnly = true;
this.dataGrid1. Size = new System.Drawing. Size(592, 440);
this.dataGrid1. TabIndex = 0;
this.dataGrid1. TableStyles.Add Range(new
System.Windows. Forms.DataGridT ableStyle[] {
this.dataGridTa bleStyle1});
//
// dataGridTableSt yle1
//
this.dataGridTa bleStyle1.DataG rid = this.dataGrid1;
this.dataGridTa bleStyle1.GridC olumnStyles.Add Range(new
System.Windows. Forms.DataGridC olumnStyle[] {

this.dataGridTe xtBoxColumn1});
this.dataGridTa bleStyle1.Heade rForeColor =
System.Drawing. SystemColors.Co ntrolText;
this.dataGridTa bleStyle1.Mappi ngName = "";
this.dataGridTa bleStyle1.ReadO nly = true;
//
// dataGridTextBox Column1
//
this.dataGridTe xtBoxColumn1.Fo rmat = "";
this.dataGridTe xtBoxColumn1.Fo rmatInfo = null;
this.dataGridTe xtBoxColumn1.He aderText = "Text";
this.dataGridTe xtBoxColumn1.Ma ppingName = "Text";
this.dataGridTe xtBoxColumn1.Re adOnly = true;
this.dataGridTe xtBoxColumn1.Wi dth = 75;
//
// Form1
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(608, 453);
this.Controls.A dd(this.dataGri d1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHan dler(this.OnLoa d);

((System.Compon entModel.ISuppo rtInitialize)(t his.dataGrid1)) .EndInit();
this.ResumeLayo ut(false);
}
#endregion

[STAThread]
static void Main()
{
Application.Run (new Form1());
}
}
}

Kind regards,
--
Tom Tempelaere.