Question

I use master page to define the page layout of default.aspx. In the master page I have included ContentPlaceHolder cph. I want to access cph from default.aspx and load the ascx file into cph. How can I do this? I tried the code below in page load event, but it does not work.

     string controlPath = "~/Usercontrols/webusercontrol.ascx";
     UserControl uc = LoadControl(controlPath) as UserControl;
     ContentPlaceHolder cph = (ContentPlaceHolder)this.Master.FindControl("cphMain");
     if ((cph != null) && (uc != null))
     {
          cph.Controls.Add(uc);
     }

Answer 1

Make sure your Default.aspx has this on the page tag: MasterPageFile=”~/MasterPages/Master1.master”

Once you are sure of that, you can use this tag in your Default.aspx

<asp:Content ID="Content1" ContentPlaceHolderID="cphMain" Runat="Server">
   ....
</asp:Content>

You can just put your user in here, or you can add it dynamically. I would recommend against dynamic loading unless it is necessary (dynamic controls adds an extra layer of complexity)