ขอถามหน่อยนะครับเรื่องคำสั่ง Response ใน vb.net (Win App)

com = New SqlCommand
        Dim strSQL As String
        Dim dtAdapter As SqlDataAdapter
        Dim dt As New DataTable
        strSQL = "SELECT FileBinary FROM tblFileScan WHERE JobNo=" & txtLotNo.Text.Trim & " AND NameFile=" & Name & " "
        dtAdapter = New SqlDataAdapter(strSQL, Conn)
        com = dtAdapter.SelectCommand
        dtAdapter.Fill(dt)

        If dt.Rows.Count > 0 Then
            HttpContext.Current.Response.ContentType = "application/pdf"
            HttpContext.Current.Response.BinaryWrite(dt.Rows(0)("FileBinary"))
        End If

        dt = Nothing

Dim hImage As Image = Image.FromStream(dt.Rows(0)("FileBinary"))
picturebox .Image = hImage