C# Event Raising Problem

[Tina]

I am trying to raise a custom event in a user control passing custom data
arguments. I have done this many times in VB but this is my first time in
C#.

The code below passes the proper arguments in the
this.OnRaiseCFE vent(myArgs); code but in the OnRaiseCFEvent method
RaiseCFEVent is always null so this.RaiseCFEve nt(this,e); never executes.

Can anyone tell my why RaiseCFEvent is always null?
thanks,
T


public partial class EditGrid : System.Web.UI.U serControl
{
public delegate void ChangedFieldsEv entHandler(obje ct sender,
ChangedFieldsEv entArgs e);
public event ChangedFieldsEv entHandler RaiseCFEvent;
protected virtual void OnRaiseCFEvent( ChangedFieldsEv entArgs e)
{
if (this.RaiseCFEv ent != null)
{
this.RaiseCFEve nt(this,e);
}
}
..
..
..
ChangedFieldsEv entArgs myArgs = new
ChangedFieldsEv entArgs(gvRow.R owIndex, i, string1, string2);
this.OnRaiseCFE vent(myArgs);

..
..
..

}

public class ChangedFieldsEv entArgs : EventArgs
{
public readonly int row, col;
public readonly string newVal, oldVal;
public ChangedFieldsEv entArgs(int row, int col, string newVal, string
oldVal)
{
this.row = row;
this.col = col;
this.newVal = newVal;
this.oldVal = oldVal;
}
}

[Tim_Mac]

hi Tina
at a guess, your code goes something like this:

if(RaiseCFEVent != null)
this.RaiseCFEve nt(args);

and you are wondering why the RaiseCFEVent delegate is null? if this is
null, it means nobody is listening for the event.
if you want some code to listen to the event, use code like this:

MyObject.RaiseC FEvent += new EventHandler(th is.RaiseCFEvent _Handler);

where MyObject is the object that contains the event delegate. it may help
to open up the debugger in VS and examine the RaiseCFEvent delegate before
and after you add your event handlers, you will be able to see if any
handlers are wired up to it.

hope this helps.
tim
--
------------------------------------------
blog: http://tim.mackey.ie
"Tina" <Ti**********@n ospamexcite.com wrote in message
news:ub******** ******@TK2MSFTN GP06.phx.gbl...

>I am trying to raise a custom event in a user control passing custom data
arguments. I have done this many times in VB but this is my first time in
C#.

The code below passes the proper arguments in the
this.OnRaiseCFE vent(myArgs); code but in the OnRaiseCFEvent method
RaiseCFEVent is always null so this.RaiseCFEve nt(this,e); never executes.

Can anyone tell my why RaiseCFEvent is always null?
thanks,
T


public partial class EditGrid : System.Web.UI.U serControl
{
public delegate void ChangedFieldsEv entHandler(obje ct sender,
ChangedFieldsEv entArgs e);
public event ChangedFieldsEv entHandler RaiseCFEvent;
protected virtual void OnRaiseCFEvent( ChangedFieldsEv entArgs e)
{
if (this.RaiseCFEv ent != null)
{
this.RaiseCFEve nt(this,e);
}
}
.
.
.
ChangedFieldsEv entArgs myArgs = new
ChangedFieldsEv entArgs(gvRow.R owIndex, i, string1, string2);
this.OnRaiseCFE vent(myArgs);

.
.
.

}

public class ChangedFieldsEv entArgs : EventArgs
{
public readonly int row, col;
public readonly string newVal, oldVal;
public ChangedFieldsEv entArgs(int row, int col, string newVal, string
oldVal)
{
this.row = row;
this.col = col;
this.newVal = newVal;
this.oldVal = oldVal;
}
}

[Tina]

I'm doing that. Please see my repost.
Thanks for responding.
T

"Tim_Mac" <ti********@com munity.nospamwr ote in message
news:Og******** ******@TK2MSFTN GP03.phx.gbl...

hi Tina
at a guess, your code goes something like this:

if(RaiseCFEVent != null)
this.RaiseCFEve nt(args);

and you are wondering why the RaiseCFEVent delegate is null? if this is
null, it means nobody is listening for the event.
if you want some code to listen to the event, use code like this:

MyObject.RaiseC FEvent += new EventHandler(th is.RaiseCFEvent _Handler);

where MyObject is the object that contains the event delegate. it may
help to open up the debugger in VS and examine the RaiseCFEvent delegate
before and after you add your event handlers, you will be able to see if
any handlers are wired up to it.

hope this helps.
tim
--
------------------------------------------
blog: http://tim.mackey.ie
"Tina" <Ti**********@n ospamexcite.com wrote in message
news:ub******** ******@TK2MSFTN GP06.phx.gbl...

>>I am trying to raise a custom event in a user control passing custom data
arguments. I have done this many times in VB but this is my first time in
C#.

The code below passes the proper arguments in the
this.OnRaiseCF Event(myArgs); code but in the OnRaiseCFEvent method
RaiseCFEVent is always null so this.RaiseCFEve nt(this,e); never executes.

Can anyone tell my why RaiseCFEvent is always null?
thanks,
T


public partial class EditGrid : System.Web.UI.U serControl
{
public delegate void ChangedFieldsEv entHandler(obje ct sender,
ChangedFieldsE ventArgs e);
public event ChangedFieldsEv entHandler RaiseCFEvent;
protected virtual void OnRaiseCFEvent( ChangedFieldsEv entArgs e)
{
if (this.RaiseCFEv ent != null)
{
this.RaiseCFEve nt(this,e);
}
}
.
.
.
ChangedFieldsEv entArgs myArgs = new
ChangedFieldsE ventArgs(gvRow. RowIndex, i, string1, string2);
this.OnRaiseCFE vent(myArgs);

.
.
.

}

public class ChangedFieldsEv entArgs : EventArgs
{
public readonly int row, col;
public readonly string newVal, oldVal;
public ChangedFieldsEv entArgs(int row, int col, string newVal, string
oldVal)
{
this.row = row;
this.col = col;
this.newVal = newVal;
this.oldVal = oldVal;
}
}