title: To give usercontrol in src of iframe
body: <p>i have a <code>ModalPopupExtender</code>  like,</p>
  
  <pre><code>&lt;ajaxtoolkit:ModalPopupExtender ID="mpeClientView" runat="server" TargetControlID="lblClientName" PopupControlID="frmMaodalPopup" OkControlID="closeBtn"&gt;&lt;/ajaxtoolkit:ModalPopupExtender&gt;
  </code></pre>
  
  <p>and an <code>iframe</code> like</p>
  
  <pre><code>&lt;iframe id="frmMaodalPopup" runat="server" src="/DashboardUserControls/ClientInformation.ascx" width="700px" height="400px" scrolling="no"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>and a <code>LinkButton</code></p>
  
  <pre><code>&lt;asp:LinkButton ID="lnkSearch1" runat="server" Enabled="true" OnClick="lnkSearch_Click" Text="Client Name"&gt;&lt;/asp:LinkButton&gt;
  </code></pre>
  
  <p>When i click the LinkButton i want the iframe to popup which src is a UserControl ClientInformation.ascx. But when i click the button the iframe pop up, but it is not able to load the usercontrol. Kindly point out where i'm making the mistake</p>