本文主要介绍MVC模式在WINFORM中的实现，其实砖家们都称它为MVP模式，小弟E文不太好，真的是记不住那个P怎么拼写的。。
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:
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.ComponentModel;
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namespace
WindowsFormsApplication10
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{
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public
class
Person :
INotifyPropertyChanged
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{
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private
string _id;
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public
string ID
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{
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get {
return _id; }
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set { _id =
value; OnPropertyChanged(
"ID"); }
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}
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private
string _name;
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public
string Name
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{
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get {
return _name; }
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set { _name =
value; OnPropertyChanged(
"Name"); }
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}
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#region INotifyPropertyChanged 成员
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public
event PropertyChangedEventHandler PropertyChanged;
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protected void OnPropertyChanged(string PropertyName)
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{
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PropertyChangedEventHandler handler = PropertyChanged;
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if (handler !=
null)
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{
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handler(
this,
new PropertyChangedEventArgs(PropertyName));
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}
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}
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#endregion
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}
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}
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;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace
WindowsFormsApplication10
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{
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public
class
PersonControllor
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{
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public PersonForm View;
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public Person Model;
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public PersonControllor(PersonForm view)
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{
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//初始化了一个Model
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Model =
new Person() { ID =
"1", Name =
"xiaojun" };
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//通过构造函数将View注入到Controllor中
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this.View = view;
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//建立起View 和Controllor的关联
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//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
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this.View.Controllor =
this;
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}
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-
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/// <summary>
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/// 执行一个业务逻辑
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/// </summary>
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public void UpdatePerson()
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{
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UpdateToDataBase(Model);
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}
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private void UpdateToDataBase(Person p)
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{
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//do some thing
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//执行将数据插入到数据库的操作
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System.Windows.Forms.MessageBox.Show(
"ID:" + p.ID +
" Name:" + p.Name);
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}
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-
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}
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}
然后是View的实现：
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace
WindowsFormsApplication10
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{
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public
partial
class
PersonForm :
Form
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{
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private PersonControllor _controllor;
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public PersonControllor Controllor
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{
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get {
return _controllor; }
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set
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{
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this._controllor =
value;
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//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)
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//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
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//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
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//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
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this.textBox1.DataBindings.Add(
"Text", Controllor.Model,
"ID");
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this.textBox2.DataBindings.Add(
"Text", Controllor.Model,
"Name");
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}
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}
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public PersonForm()
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{
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InitializeComponent();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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//改变VIEW的UI控件的值，Controllor的Model会跟着变
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this.textBox1.Text =
"2";
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this.textBox2.Text =
"jacky";
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Controllor.UpdatePerson();
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}
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private void button2_Click(object sender, EventArgs e)
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{
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//改变Controllor的Model的值，VIEW的UI控件的值会跟着变
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Controllor.Model.ID =
"2";
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Controllor.Model.Name =
"jacky";
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Controllor.UpdatePerson();
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}
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private void PersonForm_Load(object sender, EventArgs e)
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{
-
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}
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}
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}
最后是程序启动：
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Windows.Forms;
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namespace
WindowsFormsApplication10
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{
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static
class
Program
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{
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/// <summary>
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/// 应用程序的主入口点。
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/// </summary>
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[
STAThread]
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static void Main()
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{
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Application.EnableVisualStyles();
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Application.SetCompatibleTextRenderingDefault(
false);
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//Controllor-First模式,先创建Controllor(PersonControllor)再将View(PersonForm)注入到Controllor(PersonControllor)中
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PersonControllor controllor =
new PersonControllor(
new PersonForm());
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Application.Run(controllor.View);
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}
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}
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}
例子--转摘