title: Multiple controls with the same ID 'xxx' were found
body: <p>I have a enterprise application converted from VS2003 to vs2005 .</p>
  
  <p>The converted application, in one page i do edit and save i am getting this error.</p>
  
  <p><strong>System.Web.HttpException: Multiple controls with the same ID 'hidWIPID0' were found. FindControl requires that controls have unique IDs.</strong></p>
  
  <p>But the same work fine in the code of vs2003 version without any error.</p>
  
  <p>Its a huge application with dynamic master pages and usercontrols etc..So i cant paste the exact code here.</p>
  
  <p>But the origin of the error is master page content control.</p>
  
  <p><strong>eg:</strong>
  page code
  MasterPageStrategy:Content id="pnlMain"</p>
  
  <p><strong>Error</strong></p>
  
  <p>Multiple controls with the same ID 'hidWIPID0' were found</p>
  
  <p><strong>View Source</strong> </p>
  
  <p>MasterPage:pnlMain:_ctl2:hidWIPID0</p>
  
  <p>I Microsoft support there is an article explaining the same issue.But it applies to 1.1 version.
  I have already converted code in 2.0 version and the error appears in convertd code.</p>
  
  <p><a href="http://support.microsoft.com/kb/834608" rel="nofollow noreferrer">http://support.microsoft.com/kb/834608</a></p>
  
  <p>someone please look into this issue and provide me a solution as it is very urgent.</p>
  
  <p>Thanks
  SNA</p>