使用事件传递参数

Question

在我的代码中，我有一个button和textbox。我想通过点击button，将变量k的值发送到textbox。但是当我点击按钮时，什么都没有发生，我的代码有什么问题。 这是我的代码。

public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 
     public delegate string fac(int x); 
     public static fac intostring = factory; 

     public static string inst= null; 
     public static string factory(int x) 
     { 
      inst = x.ToString(); 
      return inst; 
     } 

     public delegate void myeventhandler(string newvalue); 
     public class EventExample 
     { 
      private string thevalue; 
      public event myeventhandler Valuechanged; 

      public string val 
      { 
       set 
       { 
        this.thevalue = value; 
        this.Valuechanged(thevalue); 
       }   
      } 
     } 

public void uu(string newvalue) 
{ 
    this.textBox1.Name = (newvalue); 
} 

static int k=0; 
private void button1_Click(object sender, EventArgs e) 
{ 
    k = 1; 
    intostring(k); 
} 

private void Form1_Load(object sender, EventArgs e) 
{ 
    EventExample myevt = new EventExample(); 
    myevt.Valuechanged += new myeventhandler(uu); 
    myevt.val = inst;       
    } 
} 

}

Answer 1

只要里面的button1_Click

private void button1_Click(object sender, EventArgs e) 
{ 
    k = 1; 
    intostring(k); 
    this.textBox1.Text = thevalue; 
}