VB สร้าง BeginTransaction ไม่ได้ : ExecuteReader requires the command to have a transaction when the connection assigned to

Dim transaction As SqlTransaction
Try


strConnString = "Server=" + ServName + ";Database=Customer;User Id=" + Username + ";Password=" + Password + ";"
            objConn.ConnectionString = strConnString
            objConn.Open()

            transaction = objConn.BeginTransaction()

 execute = ""
                    execute = "UPDATE teble1 SET "
                    execute += "id = '" + customerID + "', "
                    execute += "name = '" + customerName + "' "
                    execute += "WHERE id  = '" + customerID + "' "

                    objCmd = New SqlCommand(execute , objConn)
                    objCmd.ExecuteNonQuery()

                    transaction.Commit()

        Catch ex As Exception
            MessageBox.Show(ex.Message)
            transaction.Rollback()
        End Try