C#练习委托、事件、事件处理

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

namespace MyEventTest
{
class Program
{
/// <summary>
/// 第一步 新建委托需要的带参数的类,属于事件的参数的子类
/// </summary>
public class MyClassEventArgs : EventArgs
{
private string name;

public string Name
{
get { return name; }
set { name = value; }
}
private int age;

public int Age
{
get { return age; }
set { age = value; }
}

}

/// <summary>
/// //第二步 新建一个带参数的委托
/// </summary>
/// <param name="sender">触发源</param>
/// <param name="mc">参数</param>
public delegate void MyDelegate(object sender,MyClassEventArgs mc);

/// <summary>
/// 第三步 新建一个会触发事件的类
/// </summary>
public class Custom
{
/// <summary>
/// 第四步 新建一个委托发生时触发的事件
/// </summary>
public event MyDelegate Shout;

private string name;

public string Name
{
get { return name; }
set { name = value; }
}
private int age;

public int Age
{
get { return age; }
set { age = value; }
}

public Custom()
{

}

public Custom(string n, int a)
{
name = n;
age = a;
}

public void Buy()
{
Console.WriteLine("{0}:我要来买东西！",this.name);

//第五步 在方法中关联事件
MyClassEventArgs mcea = new MyClassEventArgs();
mcea.Name = name;
mcea.Age = age;
if (Shout != null)
{
Shout(this,mcea);
}
}
}

/// <summary>
/// 第六步 新建一个事件发生后要执行的类
/// </summary>
public class Reporter
{
public void Notify(object sender, MyClassEventArgs mcea)
{
Console.WriteLine("老板：小白快去接客了，客户名字叫{0}，年龄{1}岁",mcea.Name,mcea.Age);
}
}

/// <summary>
/// 第七步 做一种触发事件的情况，并把事件和事件的处理关联起来
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
Custom c1 = new Custom("大美女",18);
Reporter r1 = new Reporter();

c1.Shout +=new MyDelegate(r1.Notify);

c1.Buy();
}
}
}