MySQL, VB.NET ผมมีข้อส่งใสครับ ฐานข้อมูล AppServ บันทึกผ่าน Parameters.Add ไม่ได้ครับทำไงครับ

            '*** Insert to Database ***'
            Dim objConn As New MySqlConnection
            Dim strConnString, strSQL As String

            strConnString = "Server=localhost;User Id=root; Password=root; Database=mydatabase; Pooling=false;"

            strSQL = "INSERT INTO files (Name,FilesName,FilesType) " & _
            " VALUES " & _
            " (?sName,?sFilesName,?sFilesType)"
            objConn.ConnectionString = strConnString
            objConn.Open()

            Dim objCmd As New MySqlCommand(strSQL, objConn)
            objCmd.Parameters.Add("?sName", MySqlDbType.VarChar).Value = Me.txtName.Text
            objCmd.Parameters.Add("?sFilesName", MySqlDbType.Binary).Value = imbByte
            objCmd.Parameters.Add("?sFilesType", MySqlDbType.VarChar).Value = strMIME
            objCmd.ExecuteNonQuery()

            objConn.Close()
            objConn = Nothing