c# - Adding aTabPanel dynamically and making its ContentTemplate from ASPX -

context:

an ajax control toolkit tabcontainer, each tabpanel generated code behind, , contenttemplate custom control.

the custom control corresponds goes directly in tabpanel's contenttemplate:

<%@ control language="c#" autoeventwireup="true" codebehind="tabcontenttemplatetest.ascx.cs" inherits="webgui.controls.tabcontenttemplatetest" %>  <asp:label runat="server" id="tabtext" /> 

and code behind:

public partial class tabcontenttemplatetest : usercontrol, itemplate {     public string number { get; set; }      protected void page_load(object sender, eventargs e)     {         tabtext.text = number;     }      public void instantiatein(control container)     {         container.controls.add(this);     } } 

creation (code behind of tabcontainertest, having tabcontainer named samplestabcontainer):

public string[] numbers = { "zero", "one", "two", "three", "four" };  protected void page_load(object sender, eventargs e) {     (int = 0; < 5; i++)     {         var tabcontent = loadcontrol("~/controls/tabcontenttemplatetest.ascx") tabcontenttemplatetest;         tabcontent.number = numbers[i];         samplestabcontainer.tabs.add(new tabpanel         {             headertext = i.tostring(),             contenttemplate = tabcontent         });     } } 

the problem content (here simplified label) doesn't show.

how can generate custom control aspx contenttemplate , display it?

setting tabpanel's ondemandmode ondemandmode.none forces addition of controls right away, makes them display.