i am using update panel... in one of my aspx page version is NET 2010
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 like
If 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 ??