title: Dropdownlist in gridview in update panel to trigger client-side confirm box
body: <ul>
  <li>I have a gridview.</li>
  <li>The Gridview is in an update panel.</li>
  <li>I added a dropdownlist in a template column of the gridview.</li>
  <li>I have autopostback set to true.</li>
  <li>I have code working in the selectedindexchanged event</li>
  </ul>
  
  <p>all of that works great</p>
  
  <p>now I want to add a javascript confirm prompt on client-side change of the dropdowns
  I have it popping up the confirm box, but no matter what the user selects (ok or cancel) it does not post back</p>
  
  <pre><code> &lt;asp:DropDownList ID="ddlWinnerStatus" runat="server" CssClass="winStatusDDL" OnChange="return ShowWarning(this);"AutoPostBack="true" OnSelectedIndexChanged="ddlWinnerStatus_OnSelectedIndexChanged"&gt;&lt;/asp:DropDownList&gt;
  </code></pre>