弹对话框!

sf顶了.上个贴2.3分钟就结了.csdn.....good.大家解答啊.Thanks.

        protected void Button1_Click(object sender, EventArgs e)
        {
            if (TextBox1.Text == "11")
                ClientScript.RegisterStartupScript(this.GetType(), "", " <script>if(confirm('确定显示时间!'))document.getElementById(\"TextBox1\").value=\""+ DateTime.Now.ToShortDateString().ToString().Trim()  +"\"; </script>");
        }

ClientScript.RegisterStartupScript(this.GetType(), "PleaseCheck", "if(confirm('确定吗'))document.getElementById('textbox1').value='"+DateTime.Now.ToString("yyyy-MM-dd").Trim()+"';else
document.getElementById('textbox1').value='';",true);

在后台生成 js里面的 confirm ，不管你怎么点，都会继续执行下面的代码，明白？

前台：<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default8.aspx.cs" Inherits="Default8" %><!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></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
    </div>
    </form>
</body>
</html>后台：using System;public partial class Default8 : System.Web.UI.Page
{
    string flag;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Request.QueryString["flag"] != null)
            {
                flag = Request.QueryString["flag"].ToString();
                if (flag == "true")
                {
                    Bind();
                }
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (TextBox1.Text == "11")
        {
            ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>if (confirm('确定显示时间？')) {location.href='Default8.aspx?flag=true'} else {location.href='Default8.aspx?flag=false'}</script>");
        }
    }    private void Bind()
    {
        TextBox1.Text = DateTime.Now.ToShortDateString();
    }
}我也是新手，帮你想了一会，水平有限，实在没想出好的办法来，用了这个我自己觉得挺怪异的方法。根据confirm中做的选择向本页传参，然后后台代码根据参数调用函数。有高手的话，指教下，好学习啊！！！！

用js写吧
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Test._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>无标题页</title>
    <script language="javascript">
        function check()
        {
            var now=new Date();             var year=now.getYear();             var month=now.getMonth();             var day=now.getDate();             var hours=now.getHours();             var minutes=now.getMinutes();             var seconds=now.getSeconds();             var CurrentTime=year+"-"+month+"-"+day+" "+hours+":"+minutes+":"+seconds;
            if(document.getElementById("TextBox1").value=="11")
            {
                if(confirm("确定吗"))
                {
                    document.getElementById("TextBox1").value=CurrentTime;
                }
                else
                {
                    document.getElementById("TextBox1").value="";
                }
            }
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:TextBox ID="TextBox1" runat="server" ></asp:TextBox>
    <asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="check();" />
    </form>
</body>
</html>

很显然，用OnClientClick是最方便的。

return confirm写在OnClientClick里就行了,如果写在后台文件点什么都会执行的

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