at System.IO.__Error.WinIOError(Int32 errorCode, String str)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize)
at System.IO.StreamWriter.CreateFile(String path, Boolean append)
at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize)
at System.IO.StreamWriter..ctor(String path, Boolean append)
at PARSDATA.Utilities.General.clsViewStateChacher.SaveIn(StringWriter vs, String fileName)
at PARSDATA.Utilities.General.clsViewStateChacher.SavePageStateToPersistenceMedium(Object viewState)
at System.Web.UI.Page.SavePageViewState()
at System.Web.UI.Page.ProcessRequestMain()