I am using ajax and jquery to load contents into a div.

My jquery looks like this

  $("a.trigger").click(function() {

   $.ajax({

    type: "POST",

    url: "GetStuff.aspx",

    data: "id=0",

    success: function(response){

     $("#contentDiv").html(response);

    }

   });

     });

In GetStuff.aspx I would like to write some asp.net html controls like

  private void Page_Load(object sender, System.EventArgs e)

  {

      Response.Expires = -1;

      Response.ContentType = "text/plain";

      Response.Write("<asp:Label id=\"label1\" runat=\"server\" text=\"helloworld\"/>");

      Response.End();

  }

However the label does not appear on the page.

I tried to put the asp:Label in my aspx file like this

<%@ Page Language="C#" Inherits="Untitled.GetStuff" %>

<asp:Label id="label12" runat="server" text="helloworld2"/>

It also does not work. How can I get asp.net html controls to show up?