ASP.NET中实现直接从网页上下载文件，而不须引用文件URL来下载

                        While ReadCount = FileBuffer
                                ReadCount = Reader.Read(Buffer, 0, FileBuffer)
                                ReDim Preserve Buffer(ReadCount - 1)
                                PageResponse.BinaryWrite(Buffer)
                        End While
                        Response.End()
                Catch ex As Exception
                        Return False
                Finally
                        Reader.Close()
                End Try
        Catch ex As Exception
                Return False
        End Try
        Return True
End Function