title: How to call javascript function on keyup event for asp:TextBox
body: <p>How to call javascript function on keyup event for asp.net's TextBox control? I am trying something like this, but it is not working. 
  <br/></p>
  
  <pre><code>&lt;asp:TextBox ID="txt_userid" runat="server"  onkeyup="GetRes();"&gt;&lt;/asp:TextBox&gt;
  </code></pre>
  
  <p><br/>
  <strong>UPDATE</strong>
  <BR/>
  there is a update alert is working but breakpoints in java function is not working.</p>