异步POST数据

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="index.aspx.cs" Inherits="WebApplication1.index" %>

<!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>
    <script type="text/javascript" language="javascript">
var xmlHttp;
function createXMLHttpRequest()
{
    if(window.ActiveXObject)
    {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else if(window.XMLHttpRequest)
    {
        xmlHttp = new XMLHttpRequest();
    }
}

function CheckUserName(a) {
    createXMLHttpRequest();
    //alert(username);
    var webFileUrl = "Default.aspx?CheckUser=" + a ;
    var result = "";
    //var xmlHttp = new ActiveXObject("MSXML2.XMLHTTP");
    xmlHttp.open("POST", webFileUrl, false);
    xmlHttp.send("");
}
    
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
    
    </div>
    </form>
</body>
</html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class index : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string name = "偶 也";
            ClientScript.RegisterStartupScript(this.GetType(), "SayHello", "<script>CheckUserName('" + Server.UrlEncode(name) + "')</script>");
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!this.IsPostBack)
            {
                string a = Request.QueryString["CheckUser"].ToString();
            }
        }
    }
}

posted on 2014-01-07 22:05 小角色阅读(147) 评论(0) 收藏举报