SIPSorcery.DialPlanWizard.DeleteRoute C# (CSharp) Method

        private void DeleteRoute(object sender, System.ComponentModel.CancelEventArgs e)
        {
            SIPDialplanRoute routeEntry = m_routesDataGrid.SelectedItem as SIPDialplanRoute;
            MessageBoxResult confirmDelete = MessageBox.Show("Press Ok to delete Route " + routeEntry.RouteName + ".", "Confirm Delete", MessageBoxButton.OKCancel);
            if (confirmDelete == MessageBoxResult.OK)
            {
                e.Cancel = true;
                m_riaContext.SIPDialplanRoutes.Remove(routeEntry);
                m_riaContext.SubmitChanges(SubmitComplete, null);
            }
            else
            {
                e.Cancel = true;
            }
        }