事件简单示例 


 1 public partial class TestForm : Form
 2     {
 3         public TestForm()
 4         {
 5             InitializeComponent();
 6         }
 7 
 8         private void TestForm_Load(object sender, EventArgs e)
 9         {
10             TestClass.testDelegateEvent += new TestClass.TestDelegate(TestClass_testDelegateEvent); //1
11             TestClass tc = new TestClass();//2
12             tc.GetInfo("aaaa");//3
13         }
14 
15         public void TestClass_testDelegateEvent(string msg)
16         {
17             msg += "!@#$";//7
18             MessageBox.Show(msg);//8
19         }
20     }
21 
22     public class TestClass
23     {
24         public delegate void TestDelegate(string msg);
25         public static event TestDelegate testDelegateEvent;
26 
27         public void GetInfo(string msg)
28         {
29             msg += "1234567890";//4
30             if (testDelegateEvent != null)//5
31                 testDelegateEvent(msg);//6
32         }
33     }

C#事件简单示例，//1  //2  ....表示执行顺序

posted @ 2013-06-14 16:36  J.Y  阅读(156)  评论(0)  编辑  收藏  举报