少有人走的路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;
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
}
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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：
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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：
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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);
}
}
}本文出自勇哥的网站《少有人走的路》wwww.skcircle.com，转载请注明出处！讨论可扫码加群：
