AJAX :: ModalPopupExtender1.Show() Does Not Work?

Aug 26, 2010

I'm trying to use code behind C# to show a Modal Popup. This is becasue I want to do some field validation on the page, before the Pop-up is shown:Following is the code I use:

<asp:Panel ID="Panel2" runat="server">
<table cellpadding="0" cellspacing="0" border="0" width="99%" align="center">
<tr>

[code]...

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