private void button1_Click(object sender, EventArgs e) 
        { 
      button2_Click(button2,new EventArgs()); 
} 
  private void button2_Click(object sender, EventArgs e) 
        { 
}

------解决方案--------------------
探讨

  private void button1_Click(object sender, EventArgs e) 
        { 
.. 
      button2_Click(button2,new EventArgs()); 
} 
  private void button2_Click(object sender, EventArgs e) 
        { 
}


------解决方案--------------------
按钮1注册两个事件

------解决方案--------------------
private void button1_Click (Object sender,  
                              EventArgs e)
  {  
      button2.PerformClick();   
  }

PerformClick（）生成按钮的 Click 事件。


------解决方案--------------------
C# code
this.button1.Click += new System.EventHandler(this.button1_Click);
this.button1.Click += new System.EventHandler(this.button2_Click);

------解决方案--------------------
这个简单,
在Form.Designer.cs下把 你的按钮1的方法改为:

this.button1.Click += new System.EventHandler(this.button1_Click_1)+new System.EventHandler(this.button2_Click);

嘿嘿......

------解决方案--------------------
探讨

引用:
  private void button1_Click(object sender, EventArgs e)  
        {  
..  
      button2_Click(button2,new EventArgs());  
}  
  private void button2_Click(object sender, EventArgs e)  
        {  
} 


------解决方案--------------------
探讨

  private void button1_Click(object sender, EventArgs e) 
        { 
.. 
      button2_Click(button2,new EventArgs()); 
} 
  private void button2_Click(object sender, EventArgs e) 
        { 
}


------解决方案--------------------
调用第2个按钮的 PerformClick  方法即可。

下面的代码示例在一个按钮更迭 Click 事件时生成另一个 Button 的 Click 事件。此代码假定已在窗体上实例化两个 Button 控件，并且已将一个名为 myVar 的成员变量在类中声明为 32 位有符号整数。

C# code

private void button1_Click (Object sender, 
                               EventArgs e)
 {
    // If myVar is an even number, click Button2.
    if(myVar %2 == 0)
    {
       button2.PerformClick(); // <------------------------------------
       // Display the status of Button2's Click event.
       MessageBox.Show("button2 was clicked ");
    }
    else
    {
       // Display the status of Button2's Click event.
       MessageBox.Show("button2 was NOT clicked");
    }
    // Increment myVar.   
    myVar = myVar + 1;
 }

------解决方案--------------------
七楼的我不是很懂，但我觉得四楼的比较符合逻辑