在页面中监听用户控件的按钮点击事件
网友 http://www.mzwu.com/
页面中的一些操作需在用户控件的按钮(以下简称按钮)点击时激发，这就需要在页面中监听按钮点击事件，一种实现方式在用户控件中添加自定义事件，在页面中订阅事件，按钮点击点激发自定义事件，代码如下：

1). 用户控件WebUserControl
 
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="WebUserControl.ascx.cs" Inherits="WebUserControl" %>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Button" />
 
WebUserControl.ascx.cs：
 
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class WebUserControl : System.Web.UI.UserControl
{
    //委托
    public delegate void MyClickEventHandler();
    //事件
    public event MyClickEventHandler MyClick;
    //方法
    public void OnMyClick()
    {
        if (MyClick != null)
            MyClick();
    }

    /// <summary>
    /// 按钮点击事件处理程序
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void Button1_Click(object sender, EventArgs e)
    {
        OnMyClick();
    }
}
 
2). .NET页面

Default.aspx：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<%@ Register Src="WebUserControl.ascx" TagName="WebUserControl" TagPrefix="uc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>在页面中监听用户控件的按钮点击事件-Mzwu.Com</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <uc1:WebUserControl ID="WebUserControl1" runat="server" />
        <br />
        <asp:Label ID="Label1" runat="server" Text=""></asp:Label> </div>
    </form>
</body>
</html>
Default.aspx.cs：
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;


using System.Text.RegularExpressions;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        WebUserControl1.MyClick += new WebUserControl.MyClickEventHandler(ToDo);
    }

    protected void ToDo()
    {
        Label1.Text += DateTime.Now.ToString() + ": WebUserControl1控件中的Button1被你点坏了！<br/>";
    }
}
效果图：
 
 
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