title: How to enable/disable link button from another control which is in update panel?
body: <pre><code>&lt;asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional"&gt;
      &lt;ContentTemplate&gt; 
      &lt;div&gt;                     
          &lt;asp:DropDownList runat="server" EnableViewState="true" DataTextField="Name" DataValueField="Id"  DataSourceID="ListSource"  ID="List"            OnDataBound="List_OnDataBound" AutoPostBack="True" OnSelectedIndexChanged="List_SelectedIndexChanged"&gt;
          &lt;/asp:DropDownList&gt;
      &lt;/div&gt;
      &lt;/ContentTemplate&gt;
          &lt;Triggers&gt;
          &lt;asp:AsyncPostBackTrigger ControlID="List2" EventName="SelectedIndexChanged" /&gt;
          &lt;asp:AsyncPostBackTrigger ControlID="List" EventName="SelectedIndexChanged" /&gt;
          &lt;/Triggers&gt;
      &lt;/asp:UpdatePanel&gt;
  </code></pre>
  
  <p>on List_SelectedIndexChanged i am enabling/disabling anothe link button which is not in update panel but it is not working. i dont want to put linkbutton on update panel because on its click i want full page post back.</p>