MVC模式主要解决的问题就是将表示层和业务层进行分离，在以往做WINFORM项目的时候，通常都是将很多的逻辑代码直接写在了Form.cs代码的事件里，这样的话业务逻辑就和界面紧耦合在一起了，现在我们采用MVC来解耦。


首先建立Model:

[csharp] view plain copy
using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.ComponentModel;  

namespace WindowsFormsApplication10  
{  
    public class Person : INotifyPropertyChanged  
    {  
        private string _id;  
        public string ID  
        {  
            get { return _id; }  
            set { _id = value; OnPropertyChanged("ID"); }  
        }  
        private string _name;  

        public string Name  
        {  
            get { return _name; }  
            set { _name = value; OnPropertyChanged("Name"); }  
        }  

        #region INotifyPropertyChanged 成员  

        public event PropertyChangedEventHandler PropertyChanged;  

        protected void OnPropertyChanged(string PropertyName)  
        {  
            PropertyChangedEventHandler handler = PropertyChanged;  
            if (handler != null)  
            {  
                handler(this, new PropertyChangedEventArgs(PropertyName));  
            }  
        }  
        #endregion  
    }  

}  

为了能支持双向绑定数据，Model实现了INotifyPropertyChanged接口.

再看看Controllor的实现：

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using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  

namespace WindowsFormsApplication10  
{  
    public class PersonControllor  
    {  
        public PersonForm View;  

        public Person Model;  

        public PersonControllor(PersonForm view)  
        {  
            //初始化了一个Model  
            Model = new Person() { ID = "1", Name = "xiaojun" };  
            //通过构造函数将View注入到Controllor中  
            this.View = view;  

            //建立起View 和Controllor的关联  
            //这时候View中能使用它所对应的Controllor进行业务逻辑的操作,Model也能和VIEW UI控件进行双向绑定  
            this.View.Controllor = this;  

        }  


        /// <summary>  
        /// 执行一个业务逻辑  
        /// </summary>  
        public void UpdatePerson()  
        {  
            UpdateToDataBase(Model);  
        }  

        private void UpdateToDataBase(Person p)  
        {  
            //do some thing  
            //执行将数据插入到数据库的操作  
            System.Windows.Forms.MessageBox.Show("ID:" + p.ID + " Name:" + p.Name);  
        }  
  //这边的业务逻辑应该写在model里比较合适

    }  
}  

然后是View的实现：

[csharp] view plain copy
using System;  
using System.Collections.Generic;  
using System.ComponentModel;  
using System.Data;  
using System.Drawing;  
using System.Linq;  
using System.Text;  
using System.Windows.Forms;  

namespace WindowsFormsApplication10  
{  
    public partial class PersonForm : Form  
    {  
        private PersonControllor _controllor;  

        public PersonControllor Controllor  
        {  
            get { return _controllor; }  
            set  
            {  
                this._controllor = value;  
                //绑定一定只能写在给Controllor赋值以后而不能写在PersonForm的构造函数中(此时Controllor还未被实例化)  
                //因为我们这里采用的是Controllor-First而不是View-First，不然Controllor.Model为null会异常  
                //将View通过构造函数注入到Controllor中的属于Controllor-First,这时候Controllor先创建  
                //将Controllor通过构造函数注入到View中的属于View-First,这时候View先创建  
                this.textBox1.DataBindings.Add("Text", Controllor.Model, "ID");  
                this.textBox2.DataBindings.Add("Text", Controllor.Model, "Name");  
            }  
        }  





        public PersonForm()  
        {  
            InitializeComponent();  


        }  

        private void button1_Click(object sender, EventArgs e)  
        {  
            //改变VIEW的UI控件的值，Controllor的Model会跟着变  
            this.textBox1.Text = "2";  
            this.textBox2.Text = "jacky";  
            Controllor.UpdatePerson();  
        }  

        private void button2_Click(object sender, EventArgs e)  
        {  
            //改变Controllor的Model的值，VIEW的UI控件的值会跟着变  
            Controllor.Model.ID = "2";  
            Controllor.Model.Name = "jacky";  

            Controllor.UpdatePerson();  
        }  

        private void PersonForm_Load(object sender, EventArgs e)  
        {  

        }  
    }  
}  

最后是程序启动：

[csharp] view plain copy
using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Windows.Forms;  

namespace WindowsFormsApplication10  
{  
    static class Program  
    {  
        /// <summary>  
        /// 应用程序的主入口点。  
        /// </summary>  
        [STAThread]  
        static void Main()  
        {  
            Application.EnableVisualStyles();  
            Application.SetCompatibleTextRenderingDefault(false);  
            //Controllor-First模式,先创建Controllor(PersonControllor)再将View(PersonForm)注入到Controllor(PersonControllor)中  
            PersonControllor controllor = new PersonControllor(new PersonForm());  
            Application.Run(controllor.View);  
        }  
    }  
}