Nested User Control Construction Problem.

**tdyess** · Jul 7 '08, 07:43 PM

I'm trying to create a set of nested controls but am having construction problems. Any help would be greatly appreciated. This is a simplified version of my problem. Here is the code:

Default.aspx
<%@ Page Language="C#" AutoEventWireup ="true" CodeBehind="Def ault.aspx.cs" Inherits="WebAp plication1._Def ault" %>
<%@ Register TagPrefix="PWS" TagName="Outer" Src="~/ControlOuter.as cx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dt d">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitl ed Page</title>
</head>
<body>
<PWS:Outer ID="pwsOuter" runat="server" />
</body>
</html>

ControlOuter.as cx:
<%@ Control Language="C#" AutoEventWireup ="true" CodeBehind="Con trolOuter.ascx. cs" Inherits="WebAp plication1.Cont rolOuter" %>
Outer
<asp:Panel ID="pnlOuterPan el" runat="server" />

ControlOuter.as cx.cs

Code:

namespace WebApplication1
{
    public partial class ControlOuter : System.Web.UI.UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            ControlInner ci = new ControlInner();
            pnlOuterPanel.Controls.Add(ci);
        }
    }
}

ControlInner.as cx
<%@ Control Language="C#" AutoEventWireup ="true" CodeBehind="Con trolInner.ascx. cs" Inherits="WebAp plication1.Cont rolInner" %>
Inner
<asp:Panel ID="pnlInnerPan el" runat="server" />

ControlInner.as cx.cs

Code:

namespace WebApplication1
{
    public partial class ControlInner : System.Web.UI.UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Button b = new Button();
            b.Text = "Inner Button";
            pnlInnerPanel.Controls.Add(b); [I]// pnlInnerPanel is null[/I]
        }
    }
}