事件的解绑:this.button1.Click -= new System.EventHandler(this.button1_Click);
如果一次事件如点击按钮事件要调用两个方法:在disinger中绑定。如点击和窗体加载两个方法:
this.button1.Click -= new System.EventHandler(this.button1_Click);
this.button1.Click += new System.EventHandler(this.Form1_Load);