public void popmessage(Page p,String message) 
{ 
p.Response.Write("<body onload = javascript:alert('" + message + "');>"); 
} 使用函数:popmessage(this,"对不起，当前操作执行失败'");本人写了一个例子关于如何在服务器端控件上添加客户端事件。首先创建一个页面
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><!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>Untitled Page</title> </head><body> <form id="form1" runat="server"> <div> <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="客户端事件演示-1" /> <br /> <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="客户端事件演示-2" /><br /> <asp:Button ID="Button3" runat="server" Text="添加控件客户端事件" OnClick="Button3_Click" /><br /> </div> </form></body></html>相应的cs代码
public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack) { this.Button3.Attributes.Add("onclick", "return confirm('确定吗？');");
} } protected void Button1_Click(object sender, EventArgs e) { this.RegisterClientScriptBlock("ClientScript", "<script language=javascript>alert('客户端事件演示-注册客户端事件！添加脚本在<form>后面');</script>"); } protected void Button2_Click(object sender, EventArgs e) { this.RegisterStartupScript("ClientScript", "<script language=javascript>alert('客户端事件演示-注册客户端事件！添加脚本在</form>前面');</script>"); } }邵志东老师的asp.net事件的讲座下载地址asp.net事件的讲座