本文主要介紹MVC模式在WINFORM中的實現，其實磚家們都稱它為MVP模式，小弟E文不太好，真的是記不住那個P怎么拼寫的。。
MVC模式主要解決的問題就是將表示層和業務層進行分離，在以往做WINFORM項目的時候，通常都是將很多的邏輯代碼直接寫在了Form.cs代碼的事件里，這樣的話業務邏輯就和界面緊耦合在一起了，現在我們采用MVC來解耦。
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 成員
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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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}
為了能支持雙向綁定數據，Model實現了INotifyPropertyChanged接口.
再看看Controllor的實現：
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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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//初始化了一個Model
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Model =
new Person() { ID =
"1", Name =
"xiaojun" };
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//通過構造函數將View注入到Controllor中
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this.View = view;
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//建立起View 和Controllor的關聯
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//這時候View中能使用它所對應的Controllor進行業務邏輯的操作,Model也能和VIEW UI控件進行雙向綁定
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this.View.Controllor =
this;
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}
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/// <summary>
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/// 執行一個業務邏輯
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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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//執行將數據插入到數據庫的操作
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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的實現：
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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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//綁定一定只能寫在給Controllor賦值以后而不能寫在PersonForm的構造函數中(此時Controllor還未被實例化)
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//因為我們這里采用的是Controllor-First而不是View-First，不然Controllor.Model為null會異常
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//將View通過構造函數注入到Controllor中的屬於Controllor-First,這時候Controllor先創建
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//將Controllor通過構造函數注入到View中的屬於View-First,這時候View先創建
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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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//改變VIEW的UI控件的值，Controllor的Model會跟着變
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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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//改變Controllor的Model的值，VIEW的UI控件的值會跟着變
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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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}
最后是程序啟動：
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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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/// 應用程序的主入口點。
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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,先創建Controllor(PersonControllor)再將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--轉摘