I'm trying to hide the TabPanel4 when the application start, then when user select specific item from the dropdownlist it then display the TabPanel4 out for the user. Below is the code I used, not sure why it not working. Do help me take a look at my code
see which part did I do wrongly. Thanks!
Aspx
<asp:TabContainer ID="TabContainer1" runat="server" Height="75%" Width="100%" UseHorizontalStripPlacement="true"
ActiveTabIndex="0" OnDemand="true" AutoPostBack="true" TabStripPlacement="Top" ScrollBars="Auto">
<asp:TabPanel ID="TabPanel1" runat="server" HeaderText="Incident Information" Enabled="true" ScrollBars="Auto" OnDemandMode="Once">
<ContentTemplate>
<table width="100%">
<tr>
<td>
<b>Type of ...
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