asp.net building controls: Hello to all of you geniuses,

I'm having a problem trying to get an Init handler to fire for a Placeholder
control
at the initialization phase. I’ve posted this problem to 3 other ASP.NET
forums,
and noone wants to touch it.

I tried to attach a literal control to a placeholder:
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>

/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
void plc_hldr_Control_Init (object sender, EventArgs e)
{
int ndx = 1;

// Dyn_Control_Placeholder.Controls.Add
this.Controls.Add
( new LiteralControl ("<br>added 1 on init<br>") );
}
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
void Page_Init (object sender, EventArgs e)
{
int ndx = 2;

// Add a event Handler for 'Init'.

Dyn_Control_Placeholder.Init
+= new System.EventHandler (plc_hldr_Control_Init);
}
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ *

<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>



... and nothing happened: The Init handler never fired.

I put my code in the debugger, set a breakpoint on the Init handler
(plc_hldr_Control_Init), and the breakpoint was never reached.



I've read the SDK docs, and I thought I had it figured out:
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
.NET Framework Class Library

Control.Init Event [C#]

C#
public event EventHandler Init;

Event Data
The event handler receives an argument of type EventArgs.

Remarks
Server controls should perform any initialization steps that are required
to create and set up an instance. You cannot use view-state information
within this event; it is not populated yet. You should not access another
server control during this event, regardless of whether it is a child or
parent to this control. Other server controls are not certain to be created
and ready for access.

Example
[C#] The following example assigns a custom event handler, Control_Init,
to the Init event of a control, myControl, when the Page_Init method is
called on the page that contains the control.

void Page_Init(object sender,EventArgs e)
{
// Add a event Handler for 'Init'.
myControl.Init += new System.EventHandler(Control_Init);
}

void Control_Init(object sender,EventArgs e)
{
Response.Write("The ID of the object initially : " + myControl.ID);
// Change the ID property.
myControl.ID="TestControl";
Response.Write("<br>The changed ID : " + myControl.ID);
}

© 2001-2002 Microsoft Corporation. All rights reserved.

<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>



One thing I don't understand is: Where did "myControl" come from in the
given example?



Just for laughs, I moved the Init functionality into the Page_Init handler:
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
public void plc_hldr_Control_Init (object sender, EventArgs e)
{
int ndx = 1;

// Dyn_Control_Placeholder.Controls.Add
this.Controls.Add
( new LiteralControl("<br>added 1 on init<br>") );
}
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
public void Page_Init (object sender, EventArgs e)
{
int ndx = 2;

// Add a event Handler for 'Init'.

// Dyn_Control_Placeholder.Init
// += new System.EventHandler (plc_hldr_Control_Init);

// Moving the Init functionality to the Page_Init handler
Dyn_Control_Placeholder.Controls.Add
( new LiteralControl("<br>****** added 1 on init ********<br><br>") );
}
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>



... and it worked as expected.
... so the problem has nothing to do with the LiteralControl being attached.


I'm hoping that someone smarter than me can clue me in on this
- I would be most grateful.



My complete code is as follows:
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>
<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>-<[+]>

<%@ Page Language="C#" AutoEventWireup="True" %>

<html>
<head>

<script runat="server">

/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */

/* -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
*/
// protected class sys_obj_class
public class sys_obj_class
{
private Page this_page01;
public Page Get_this_page01
{ get { return this_page01; } }

private PlaceHolder Obj_Dyn_Ctrl_Placeholder;
public PlaceHolder Get_Obj_Dyn_Ctrl_Placeholder
{ get { return Obj_Dyn_Ctrl_Placeholder; } }

private Label Obj_Dyn_Label01;
public Label Get_Obj_Dyn_Label01
{ get { return Obj_Dyn_Label01; } }


public sys_obj_class
(PlaceHolder Dyn_Ctrl_Placeholder, Label Dyn_Label)
{
this_page01 = Dyn_Ctrl_Placeholder.Page;
Obj_Dyn_Ctrl_Placeholder = Dyn_Ctrl_Placeholder;
Obj_Dyn_Label01 = Dyn_Label;
}
}

/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
void plc_hldr_Control_Init (object sender, EventArgs e)
{
int ndx = 1;

// Dyn_Control_Placeholder.Controls.Add
this.Controls.Add
( new LiteralControl("<br>added 1 on init<br>") );
}
/* ------------------------------------------------------------------ */
/* ------------------------------------------------------------------ */
void Page_Init (object sender, EventArgs e)
{
int ndx = 2;

// Add a event Handler for 'Init'.

[quoted text, click to view]