HasUploadedFile – Return whether a file uploader control has posted a file to the server

' Return whether a file uploader control has posted a file to the serverFunction HasUploadedFile(ByVal fileCtl As _    System.Web.UI.HtmlControls.HtmlInputFile) As Boolean    ' to return True the control's PostedFile must be not null,    '  and the length of the posted file must be greater than 0    Return (Not fileCtl.PostedFile Is Nothing) AndAlso _        fileCtl.PostedFile.ContentLength > 0End Function

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