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 server
Function 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 > 0
End Function