I am new to asp.net. I have been fighting for a while now and can't get a simple popup to work. All I want to do is have a button display a small window with some text in it for the user to read.
<div id="leftColumn">
        <asp:Button ID="Button1" runat="server" Text="Click For Window"  />
        <asp:Panel ID="Panel1" runat="server" CssClass="popupControl">
            <p>TEST Stuff. Lorem Ipsum textum fillum spaceum.</p>
        </asp:Panel>
    <asp:PopupControlExtender ID="PopupControlExtender1" runat="server" 
      TargetControlID="Button1" 
      PopupControlID="Panel1"  >
    </asp:PopupControlExtender>
 </div>
The css file contains "visibility:hidden;" for Panel1. I run the page, and click the button and get nothing. I also tried in-line with visible="false" with a codebehind that on click, changes to Visible=true.
Thanks for any reply.