Why does my new-ed form keep closing on me right after Show()-ing?

[sherifffruitfly]

Hi all,

I'm certain this is stupid, but I'd like to know how to keep a form
open for, say, longer than 1ms. Here's the code I'm using to open my
form:

TestModelFileRe aderForm modelInfo = new TestModelFileRe aderForm();
modelInfo.txtMo delInfo.Text = elementInfo;
modelInfo.Show( );

MessageBox.Show ("Done walidating DTD", "Walidator" );
I exposed a textbox on the modelInfo form, and assign some text to it.

The reason for the MessageBox is that without it, the modelInfo form
will disappear as soon as its opened.

I've seen new-ed form code that *looks* just like mine, but (a) their
$%^$% windows stay open, and (b) they don't even need the form's Show()
method to be called - they just appear on the screen on their own.

How can I get this form to stay on the screen?

thanks in advance,

cdj

[Bruce Wood]

sherifffruitfly wrote:

Hi all,

I'm certain this is stupid, but I'd like to know how to keep a form
open for, say, longer than 1ms. Here's the code I'm using to open my
form:

TestModelFileRe aderForm modelInfo = new TestModelFileRe aderForm();
modelInfo.txtMo delInfo.Text = elementInfo;
modelInfo.Show( );

MessageBox.Show ("Done walidating DTD", "Walidator" );
I exposed a textbox on the modelInfo form, and assign some text to it.

The reason for the MessageBox is that without it, the modelInfo form
will disappear as soon as its opened.

I've seen new-ed form code that *looks* just like mine, but (a) their
$%^$% windows stay open, and (b) they don't even need the form's Show()
method to be called - they just appear on the screen on their own.

How can I get this form to stay on the screen?

We would need to see the code for the TestModelFileRe aderForm class.

[sherifffruitfly]

Bruce Wood wrote:

We would need to see the code for the TestModelFileRe aderForm class.

Oh. Ok. I think that code is just what VS came up with after I drew the
form in Designer, but here ya go:

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

namespace TestMaker
{
/// <summary>
/// Summary description for TestModelFileRe aderForm.
/// </summary>
public class TestModelFileRe aderForm : System.Windows. Forms.Form
{
public System.Windows. Forms.TextBox txtModelInfo;
public System.Windows. Forms.Label lbl_ModelInfo;
/// <summary>
/// Required designer variable.
/// </summary>
private System.Componen tModel.Containe r components = null;

public TestModelFileRe aderForm()
{
//
// Required for Windows Form Designer support
//
InitializeCompo nent();

//
// TODO: Add any constructor code after InitializeCompo nent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

And then there's the InitializeCompo nent() method, that's
autogenerated:

private void InitializeCompo nent()
{
this.lbl_ModelI nfo = new System.Windows. Forms.Label();
this.txtModelIn fo = new System.Windows. Forms.TextBox() ;
this.SuspendLay out();
//
// lbl_ModelInfo
//
this.lbl_ModelI nfo.Location = new System.Drawing. Point(24, 8);
this.lbl_ModelI nfo.Name = "lbl_ModelInfo" ;
this.lbl_ModelI nfo.Size = new System.Drawing. Size(464, 16);
this.lbl_ModelI nfo.TabIndex = 0;
this.lbl_ModelI nfo.Text = "Model Info for ";
//
// txtModelInfo
//
this.txtModelIn fo.Location = new System.Drawing. Point(24, 24);
this.txtModelIn fo.Multiline = true;
this.txtModelIn fo.Name = "txtModelIn fo";
this.txtModelIn fo.ScrollBars =
System.Windows. Forms.ScrollBar s.Vertical;
this.txtModelIn fo.Size = new System.Drawing. Size(464, 400);
this.txtModelIn fo.TabIndex = 1;
this.txtModelIn fo.Text = "";
//
// TestModelFileRe aderForm
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(512, 446);
this.Controls.A dd(this.txtMode lInfo);
this.Controls.A dd(this.lbl_Mod elInfo);
this.FormBorder Style =
System.Windows. Forms.FormBorde rStyle.FixedDia log;
this.Name = "TestModelFileR eaderForm";
this.StartPosit ion =
System.Windows. Forms.FormStart Position.Center Screen;
this.Text = "TestModelFileR eaderForm";
this.ResumeLayo ut(false);

}
#endregion
}

[John Liu]

Actually, it sounds like your Application terminated.

TestModelFileRe aderForm modelInfo = new TestModelFileRe aderForm();
modelInfo.txtMo delInfo.Text = elementInfo;
Application.Run (modelInfo);

jliu

sherifffruitfly wrote:

Bruce Wood wrote:

We would need to see the code for the TestModelFileRe aderForm class.

Oh. Ok. I think that code is just what VS came up with after I drew the
form in Designer, but here ya go:

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

namespace TestMaker
{
/// <summary>
/// Summary description for TestModelFileRe aderForm.
/// </summary>
public class TestModelFileRe aderForm : System.Windows. Forms.Form
{
public System.Windows. Forms.TextBox txtModelInfo;
public System.Windows. Forms.Label lbl_ModelInfo;
/// <summary>
/// Required designer variable.
/// </summary>
private System.Componen tModel.Containe r components = null;

public TestModelFileRe aderForm()
{
//
// Required for Windows Form Designer support
//
InitializeCompo nent();

//
// TODO: Add any constructor code after InitializeCompo nent call
//
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Disp ose();
}
}
base.Dispose( disposing );
}

And then there's the InitializeCompo nent() method, that's
autogenerated:

private void InitializeCompo nent()
{
this.lbl_ModelI nfo = new System.Windows. Forms.Label();
this.txtModelIn fo = new System.Windows. Forms.TextBox() ;
this.SuspendLay out();
//
// lbl_ModelInfo
//
this.lbl_ModelI nfo.Location = new System.Drawing. Point(24, 8);
this.lbl_ModelI nfo.Name = "lbl_ModelInfo" ;
this.lbl_ModelI nfo.Size = new System.Drawing. Size(464, 16);
this.lbl_ModelI nfo.TabIndex = 0;
this.lbl_ModelI nfo.Text = "Model Info for ";
//
// txtModelInfo
//
this.txtModelIn fo.Location = new System.Drawing. Point(24, 24);
this.txtModelIn fo.Multiline = true;
this.txtModelIn fo.Name = "txtModelIn fo";
this.txtModelIn fo.ScrollBars =
System.Windows. Forms.ScrollBar s.Vertical;
this.txtModelIn fo.Size = new System.Drawing. Size(464, 400);
this.txtModelIn fo.TabIndex = 1;
this.txtModelIn fo.Text = "";
//
// TestModelFileRe aderForm
//
this.AutoScaleB aseSize = new System.Drawing. Size(5, 13);
this.ClientSize = new System.Drawing. Size(512, 446);
this.Controls.A dd(this.txtMode lInfo);
this.Controls.A dd(this.lbl_Mod elInfo);
this.FormBorder Style =
System.Windows. Forms.FormBorde rStyle.FixedDia log;
this.Name = "TestModelFileR eaderForm";
this.StartPosit ion =
System.Windows. Forms.FormStart Position.Center Screen;
this.Text = "TestModelFileR eaderForm";
this.ResumeLayo ut(false);

}
#endregion
}

[sherifffruitfly]

John Liu wrote:

Actually, it sounds like your Application terminated.

TestModelFileRe aderForm modelInfo = new TestModelFileRe aderForm();
modelInfo.txtMo delInfo.Text = elementInfo;
Application.Run (modelInfo);

Close - the function that new-ed the form terminated - thus (I assume)
terminating everything declared within it.

I had the notion that new-ed objects - heap stuff - would persist past
the function they were new-ed in. My mistake. My fix was to call
myform.ShowDial og() rather than myform.Show() - that forces execution
to wait until the form is closed, which is good enough for me.

[John Liu]

I suggest reading up the topics about application message loop,
Application class, Application.Run and Application.Qui t

jliu - johnliu.net

sherifffruitfly wrote:

John Liu wrote:

Actually, it sounds like your Application terminated.

TestModelFileRe aderForm modelInfo = new TestModelFileRe aderForm();
modelInfo.txtMo delInfo.Text = elementInfo;
Application.Run (modelInfo);

Close - the function that new-ed the form terminated - thus (I assume)
terminating everything declared within it.

I had the notion that new-ed objects - heap stuff - would persist past
the function they were new-ed in. My mistake. My fix was to call
myform.ShowDial og() rather than myform.Show() - that forces execution
to wait until the form is closed, which is good enough for me.