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File Upload Control is not working in Update Panel

Posted By:      Posted Date: September 16, 2010    Points: 0   Category :ASP.Net
 
hi friend... i am using update panel... in one of my aspx page (ASP.NET 2.0)there is a file upload control in update panel which is used to upload company logo on server..when i remove the update panel.. than file upload is working properly..but when i again place an update panel then file upload control is not working and its giving me error.. in likeIf String.IsNullOrEmpty(fldLogo.PostedFile.FileName.ToString) Then                 as object reference not set to an instance of an object... can any body help me ?any idea ??  


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