I have SharePoint 2010. I have installed web parts for SharePoint using the Q2 2010 Telerik AJAX Controls for SharePoint 2010 msi install file. However, when I try using the web part to a page, I get the following error:
Multiple controls with the same ID 'hlSPUserControl' were found. FindControl requires that controls have unique IDs.
Using the browser, I can add and configure the web part, but if I try to use it (for ex. sort a column) or edit the web part again, I invariably get the error. Also, if I try adding the web part in SharePoint Designer, I get an "Error Rendering Control" error (not sure if this is normal or not).
I tried reparing the install - same result.
What could be going on? Is there a way I can set the control ID so I can avoid the error?
Multiple controls with the same ID 'hlSPUserControl' were found. FindControl requires that controls have unique IDs.
Using the browser, I can add and configure the web part, but if I try to use it (for ex. sort a column) or edit the web part again, I invariably get the error. Also, if I try adding the web part in SharePoint Designer, I get an "Error Rendering Control" error (not sure if this is normal or not).
I tried reparing the install - same result.
What could be going on? Is there a way I can set the control ID so I can avoid the error?