事件源转换成button按钮进行相关处理.

前台代码:

 

  <div>
        <asp:Button ID="btn1" runat="server" Text="张三" CommandName="1" 
            onclick="btn1_Click" />
        <asp:Button ID="btn2" runat="server" Text="李四" CommandName="2" 
            onclick="btn1_Click" />
        <asp:Button ID="btn3" runat="server" Text="王五" CommandName="3" 
            onclick="btn1_Click" />
    </div>

 

 

 

后置代码:

 

  protected void btn1_Click(object sender, EventArgs e)
        {
            Button btn = (Button)sender;//事件源对象转为Button
            string str=btn.CommandName;
            switch (str)
            {
                case "1":
                    Response.Write("张三");
                    break;
                case "2":
                    Response.Write("李四");
                    break;
                case "3":
                    Response.Write("王五");
                    break;
                default:
                    break;
            }
        }