.NET初学者架构设计指南（四）Model-View-Controller

Code
private void Form1_Load(object sender, System.EventArgs e)
{
    //退出应用程序
    BaseAction exitAction = ActionFactory.CreateAction(1000);
    exitAction.Init(menuItem7);

    //打开用户缴费的界面
    BaseAction openPayMoneyAct = ActionFactory.CreateAction(1001);
    openPayMoneyAct.Init(toolBarButton1);
    openPayMoneyAct.Init(menuItem5);
    openPayMoneyAct.Init(this.treeView1.Nodes[0].Nodes[0]);

    //打开资费变更的界面
    BaseAction openChangePriceAct = ActionFactory.CreateAction(1002);
    openChangePriceAct.Init(toolBarButton2);
    openChangePriceAct.Init(menuItem6);
    openChangePriceAct.Init(treeView1.Nodes[0].Nodes[1]);
    //openChangePriceAct.IsVisible = false;
    //openChangePriceAct.Enabled = false;
}

Code
public override void Execute()
{
    //更新视图属性，把视图元素的值更新到属性里面
    BaseView view = MainWin.GetInstance().GetActiveView();
    view.UpdateAttributes();

    //得到界面上的电话号码和缴费金额
    string phone_no = view.GetAttribute("phone_no").ToString();
    string money_amount = view.GetAttribute("money_amount").ToString();

    //调用业务对象进行缴费
    try
    {
        User user = User.GetUserByPhoneNo(phone_no);
        Account account = user.GetAccount();
        account.Pay(float.Parse(money_amount));
    }
    catch (Exception e)
    {
        MessageBox.Show(e.Message);
        return;
    }
    
    //向界面发出成功消息
    MessageBox.Show("缴费成功 :)");

    //把界面清空
    view.SetAttribute("phone_no", "");
    
    //根据视图的属性，更新视图界面
    view.UpdateView();
}