I was trying with regular disabling like
ListBox1.Enabled = False
, but not working.
<asp:ListBox ID="ListBox1" runat="server" Width="125px" Height="110px" style="font-family: calibri; font-size: large; font-weight: 700; text-align: center"></asp:ListBox><ajaxToolkit:ListSearchExtender ID="ListBoxExtender1" runat="server" TargetControlID="ListBox1" IsSorted="True" Enabled="True" PromptCssClass="ListSearchExtenderPrompt" PromptText="Type"></ajaxToolkit:ListSearchExtender>
Some has a solution?
Thanks in advance for help...