How to change user tag source file from code page

 Just an approach, you need to work on it..

 Default.aspx having...

 

 

 

 
 
 1.ascx having...
 
 <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="1.ascx.cs" Inherits="WebApplication1._1" %>
 
 
 protected void Page_Load(object sender, EventArgs e)
 {
 lbl1.Text = "User Control : 1 " + Convert.ToString(DateTime.Now);
 }
 
 2.ascx having...
 
 <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="2.ascx.cs" Inherits="WebApplication1._2" %>
 
 
 protected void Page_Load(object sender, EventArgs e)
 {
 lbl2.Text = "User Control : 2 " + Convert.ToString(DateTime.Now);
 }