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Old April 27th, 2010, 05:59 PM
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Default System.web.httpException Error

I have created Table control dynamically added which has link button when clicked , panel control pops up.

I geeting an error:

"The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases"

-It point to the line "Form.controls.add(Panel)". Can somebody help please.

while (reader.Read())
{
TableRow r1 = new TableRow();
TableCell c1 = new TableCell();
TableCell c2 = new TableCell();
TableCell c3 = new TableCell();
c3.Width = Unit.Pixel(160);
LinkButton lnk = new LinkButton();
lnk.Text = "Click me to pop up";
Panel p = new Panel();
Form.Controls.Add(p); //Getting error in this line
p.Height = Unit.Pixel(80);
p.Width = Unit.Pixel(80);
p.BackColor = Color.CornflowerBlue;
AjaxControlToolkit.HoverMenuExtender h = new AjaxControlToolkit.HoverMenuExtender();
Form.Controls.Add(h);// Getting error in this line too
h.TargetControlID = lnk.UniqueID;
h.PopupControlID = p.UniqueID;
c3.Controls.Add(lnk);
c2.Text = reader["RowId"].ToString();
c1.Text = reader["MemPrediction"].ToString();
r1.Cells.Add(c2);
r1.Cells.Add(c1);
r1.Cells.Add(c3);
Tablevar1.Rows.Add(r1);
}
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Old April 28th, 2010, 05:27 PM
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Default

It looks like the error is not grumpy with this code, but with when you're running it. Have you tried performing this at an allowed point in the page life cycle?

I like to work programatically myself, and I can confirm that it's a bit grumpy around the edges.
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