另一個類.NET2中的WinForm事件簡化代理

Question

任何使這個工作代碼更簡單的方法，即代理{}？

public partial class Form1 : Form 
{ 
    private CodeDevice codeDevice; 

    public Form1() 
    { 
     InitializeComponent(); 
     codeDevice = new CodeDevice(); 

     //subscribe to CodeDevice.ConnectionSuccessEvent and call Form1.SetupDeviceForConnectionSuccessSate when it fires 
     codeDevice.ConnectionSuccessEvent += new EventHandler(SetupDeviceForConnectionSuccessState); 
    } 

    private void SetupDeviceForConnectionSuccessState(object sender, EventArgs args) 
    { 
     MessageBox.Show("It worked"); 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
     codeDevice.test(); 
    } 
} 

public class CodeDevice 
{ 
    public event EventHandler ConnectionSuccessEvent = delegate { }; 

    public void ConnectionSuccess() 
    { 
     ConnectionSuccessEvent(this, new EventArgs()); 
    } 

    public void test() 
    { 
     System.Threading.Thread.Sleep(1000); 
     ConnectionSuccess(); 
    } 
} 

WinForm event subscription to another class

How to subscribe to other class' events in c#?

Answer 1

如果不認爲你可以simplyfy：

public event EventHandler ConnectionSuccessEvent = delegate { } 

即使在C＃3 +你只能做

public event EventHandler ConnectionSuccessEvent =() => { } 

然而，你可以簡化

codeDevice.ConnectionSuccessEvent += new EventHandler(SetupDeviceForConnectionSuccessState); 

到

codeDevice.ConnectionSuccessEvent += SetupDeviceForConnectionSuccessState;