private void btnRefund_Click(object sender, RoutedEventArgs e)
{
RefundVM vm = this.DataContext as RefundVM;
refundFacade.Refund(vm.SysNo.Value, (obj, args) =>
{
vm.Status = args.Result.Status;
SetButtonStatus();
Window.Alert(ResRefundMaintain.Info_OperateSuccessfully);
});
}
