how to dynamically create ocntrols?

[Peter]

Hi

I have a slightly complicated web-application, where there is an ascx
which needs to create controls "dynamically".

The ascx has a large for-loop over a DataSet from which it extracts
various items of data to display in a list.

Under some circumstances I need to display an extra control - that is I
need to dynamically create a control - but I get an error : "The
controls collection cannot be modified because the control contains
code blocks".

Here is a boiled down version which shows the problem. This is highly
simplified, and it is not a button I really want to generate (the
button here is juet for example purposes). It is actually another user
control which is instantiated and delivered to me by some other code,
based on various parameters from the data in the DataSet.


<%@ Control Language="C#" AutoEventWireup="true"
CodeBehind="WebUserControl1.ascx.cs"
Inherits="WebApplication1.WebUserControl1" %>

<%@ Import Namespace="System.Collections.Generic" %>

<%
List<string> dataValues = Data; // get the data from code behind

for (int i = 0; i < dataValues.Count; i++)
{
string dataValue = dataValues;
%>
<%=dataValue %>
<%
if (dataValue == "two")
{
Button b = new Button();
b.ID = "button_" + i;
b.Text = "my button";

this.Controls.Add(b);
}
%>
<br />
<%
}
%>


Thanks,
Peter