title: how to fire dropdownlist.selectedindexchanged event programmatically
body: <p>I have some code which fires when user selects an item in dropdownlist. Now I want the same code to fire when I set selectedindex programmatically.</p>
  
  <p>I have tried setting </p>
  
  <pre><code>ddlSystemLevelDCP.SelectedIndex=2;
  </code></pre>
  
  <p>and this as well</p>
  
  <pre><code>ddlSystemLevelDCP.SelectedValue="2";
  </code></pre>
  
  <p>None of them fires this event. However when user changes the selection, this event fires.</p>