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error posted by CK... unhandled exception in SPD

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c3r34l_k1ll4
Jul 4 2007 at 12:41 PM Reply

Hi,
 
I have been trying to use the Multimedia Field Control but I did not succeed. I walked through the Installation Instructions in the MultimediaFieldControlSample.doc file. Everything went fine except at the last part where I have to use SharePoint Designer to add the Multimedia Field Control. I drag the control and drop it in any place in the page. The control displays the following error:
 
"An unhandled exception has occourred. Unable to cast object of type 'Microsoft.SharePoint.SPFieldMultiColumnValue' to type 'Sample.WebControls.MultimediaFieldValue'.
 
Any ideas to solve my problem?
Thanks in advance!
CK

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