private void btnCreateNew_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                FrameworkElement fe = sender as FrameworkElement;
                if (fe == null)
                {
                    MessageBox.Show("事件源不为:FrameworkElement");
                    return;
                }
                OrderReturnViewModel vm = fe.DataContext as OrderReturnViewModel;
                if (vm == null)
                {
                    throw new Exception("对象数据为空");
                }

                if (OperatorService.LoginOperator.Rights.Contains("创建订单") == false)
                {
                    throw new Exception("你没有权限创建订单");
                }

                if (vm.Source.Type != OrderReturnType.EXCHANGE)
                {
                    if (MessageBox.Show("该退货不是换货,确认需要创建?", "警告", MessageBoxButton.YesNo, MessageBoxImage.Question) !=
                        MessageBoxResult.Yes)
                    {
                        return;
                    }
                }

                var window = new OrderEditWindow {
                    SourceOrder = vm.Order
                };
                window.ShowDialog();
                if (window.Order == null)
                {
                    return;
                }
                vm.Source.NewOrderId = window.Order.Id;
                ServiceContainer.GetService <OrderReturnService>().Update(vm.Source);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }
        private void btnEditOrder_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                var or = (sender as Button).Tag as OrderViewModel;
                if (or == null)
                {
                    throw new Exception("订单对象为空");
                }

                var win = new OrderEditWindow {
                    Order = or.Source
                };
                win.Show();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }