后台using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data; using Xy.GamePt.VO; using Xy.GamePt.BO; using System.Collections;public partial class Test : System.Web.UI.Page { //添加一个 AjaxPro.HttpSessionStateRequirement 枚举的值到你的 AjaxPro.AjaxMethodAttribute中. //例如: //[AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)] //现在你就可以像下面这样存取Session的值了: this.Session["0"].ToString(). //另外一个问题:如何在AjaxMethod中使用Cookie? //答案是不能使用"this"的引用存取cookie ,你必须使用HttpContext.Current //例如: //HttpContext.Current.Request.Cookies[Name].Value. protected void Page_Load(object sender, EventArgs e) { AjaxPro.Utility.RegisterTypeForAjax(typeof(Test));
} [AjaxPro.AjaxMethod()] public string GetServerTime() { System.Threading.Thread.Sleep(2000); return DateTime.Now.ToString(); } [AjaxPro.AjaxMethod()] public DataSet GetDataSet() { DataSet ds = new DataSet(); DataTable dt = new DataTable(); dt.Columns.Add("id", typeof(int)); dt.Columns.Add("parentId", typeof(int)); dt.Columns.Add("name", typeof(string));
var isHave=JQuery.get('validuser.aspx?user'); 就行了。你要是自己写Ajax也可以,注意浏览器的支持问题建议你看看我的这个 http://blog.csdn.net/wen158809179/archive/2010/02/04/5287454.aspx我这也有中文的JQuery文档,要的找我
后台using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using Xy.GamePt.VO;
using Xy.GamePt.BO;
using System.Collections;public partial class Test : System.Web.UI.Page
{
//添加一个 AjaxPro.HttpSessionStateRequirement 枚举的值到你的 AjaxPro.AjaxMethodAttribute中. //例如:
//[AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)]
//现在你就可以像下面这样存取Session的值了: this.Session["0"].ToString().
//另外一个问题:如何在AjaxMethod中使用Cookie? //答案是不能使用"this"的引用存取cookie ,你必须使用HttpContext.Current //例如:
//HttpContext.Current.Request.Cookies[Name].Value. protected void Page_Load(object sender, EventArgs e)
{
AjaxPro.Utility.RegisterTypeForAjax(typeof(Test));
} [AjaxPro.AjaxMethod()]
public string GetServerTime()
{
System.Threading.Thread.Sleep(2000);
return DateTime.Now.ToString();
} [AjaxPro.AjaxMethod()]
public DataSet GetDataSet()
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(int));
dt.Columns.Add("parentId", typeof(int));
dt.Columns.Add("name", typeof(string));
dt.Rows.Add(1, 0, "A-DGamename1");
dt.Rows.Add(2, 1, "A-DGamename2");
dt.Rows.Add(3, 1, "A-DGamename3");
dt.Rows.Add(4, 1, "A-DGamename4");
dt.Rows.Add(5, 0, "A-DGamename5");
dt.Rows.Add(6, 5, "A-DGamename6"); dt.Rows.Add(1, 0, "E-HGamename1");
dt.Rows.Add(2, 1, "E-HGamename2");
dt.Rows.Add(3, 1, "E-HGamename3");
dt.Rows.Add(4, 1, "E-HGamename4");
dt.Rows.Add(5, 0, "E-HGamename5");
dt.Rows.Add(6, 5, "E-HGamename6");
ds.Tables.Add(dt);
return ds;
} [AjaxPro.AjaxMethod()]
public IList<Game> GetGameList()
{
return GameBO.GetGameList();
} [AjaxPro.AjaxMethod()]
public Game GetGame()
{
return GameBO.GetGame();
} /// <summary>
/// 返回Ilist
/// </summary>
/// <param name="parameter">脚本字符串参数</param>
/// <param name="arr">脚本数组参数</param>
/// <param name="xiaoxin">脚本对象参数</param>
/// <returns></returns>
[AjaxPro.AjaxMethod()]
public IList GetData(string parameter,string [] arr,object obj)
{
object xxxx = obj;
Hashtable ht = xxxx as Hashtable;
string sss = parameter;
Array aaaa = arr;
//Hashtable ht = arr as Hashtable;
return TestBO.GetIlist();
}
} 前台 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Test" %><!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">
<select id="Select1">
<option></option>
</select>
<div id="loadinfo" style="visibility:hidden;position:absolute;left:0px;top:0px;background-color:Red;color:White;">Loading</div>
<input id="Button1" type="button" value="Get StrServerTime" onclick ="javascript:GetTime();void(0)" />
<input id="Button2" type="button" value="DataSet" onclick ="javascript:Change();void(0)" />
<input id="Button3" type="button" value="DataiList" onclick ="javascript:GetIListData();void(0)" />
<input id="Button3" type="button" value="GetGameList" onclick ="javascript:GetGameList();void(0)" />
<input id="Button3" type="button" value="GetGame" onclick ="javascript:GetGame();void(0)" />
<div id="newDG"></div> <script type="text/javascript" language="javascript">
// loading效果
AjaxPro.onLoading = function(b) {
var a = document.getElementById("loadinfo");
a.style.visibility = b ? "visible" : "hidden";
}
/* 客户端调用返回的字符串--------------------*/
function GetTime() {
// 调用服务端方法
//调用方法:类名.方法名 (参数为指定一个回调函数)
Test.GetServerTime(callback);
}
function callback(res) //回调函数,显示结果
{
alert(res.value);
}
/*-----------------------------------------*/
/* 客户端调用返回的DataSet--------------------*/ function Change() {
Test.GetDataSet(change_callback)
}
function change_callback(response) {
var ds = response.value;
var content = document.getElementById("newDG");
var table = null;
for (var i = 0; i < ds.Tables[0].Rows.length; i++) {
if (i == 0) {
table = ds.Tables[0].Rows[i].name + "<br>";
}
else {
table += ds.Tables[0].Rows[i].name + "<br>";
}
}
content.innerHTML = table;
}
/*----------------------------------------------*/ /* 客户端调用返回的IList--------------------*/
function GetIListData() {
var arr = Array("1", "2", "5", "64", "78");
function User(name, age) {
this.name = name;
this.age = age;
this.canFly = false;
}
var obj = new User("234", "5345"); Test.GetData("sdfsd", arr, obj, GetIListData_callback);
}
function GetIListData_callback(response) {
var ilist = response.value;
var content = document.getElementById("newDG");
var table = null;
for (var i = 0; i < ilist.length; i++) {
if (i == 0) {
table = ilist[i][1] + "|" + ilist[i][2] + "<br>";
}
else {
table += ilist[i][1] + "|" + ilist[i][2] + "<br>";
}
}
content.innerHTML = table;
}
/*----------------------------------------------*/ /* 客户端调用返回的范型GameList--------------------*/ function GetGameList() {
Test.GetGameList(GetGameList_callback)
}
function GetGameList_callback(response) {
var gameList = response.value;
var content = document.getElementById("newDG");
// var table = game.StrGameName;
var table = null;
for (var i = 0; i < gameList.length; i++) {
if (i == 0) {
table = gameList[i].StrGameName + "<br>";
}
else {
table += gameList[i].StrGameName + "<br>";
}
}
content.innerHTML = table;
}
/*----------------------------------------------*/
/* 客户端调用返回的实体Game--------------------*/
function GetGame() {
Test.GetGame(GetGame_callback)
}
function GetGame_callback(response) {
var game = response.value;
var content = document.getElementById("newDG");
var table = game.StrGameName; content.innerHTML = table;
}
/*----------------------------------------------*/ </script>
</form>
</body>
</html>
<script type="text/javascript">
var xmlHttp;
function createXMLHttpRequest()
{
if(window.ActiveXObject)
{
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if(window.XMLHttpRequest)
{
xmlHttp = new XMLHttpRequest();
}
}
function CheckUserName()
{
var us=document.getElementById("txtname").value;
if(us!="")
{
createXMLHttpRequest();
var url= "RegistValidate.ashx?username="+escape(document.getElementById("txtname").value);
xmlHttp.open("GET",url,true);
xmlHttp.onreadystatechange=ShowResult;
xmlHttp.send(null);
}
}
function ShowResult()
{
if(xmlHttp.readyState==4)
{
if(xmlHttp.status==200)
{
var s;
s=xmlHttp.responseText;
alert(s);
}
}
}
</script>
type: "post",
data: "method=get" + '&name=' + name ,
url: "test.ashx",
success: function (status) {
if (status == 0) {
alert(用户名存在) }
else if (status == 1) {
alert("");
}
else if (status == 2) {
alert("");
}
else{alert("");
}
}
});
就行了。你要是自己写Ajax也可以,注意浏览器的支持问题建议你看看我的这个
http://blog.csdn.net/wen158809179/archive/2010/02/04/5287454.aspx我这也有中文的JQuery文档,要的找我
在你的input里加一个onblue就是了 <input name="username" onblue="CheckUserName()">
那是最基础的Ajax,比较实用.
LZ可以用一个页面只放用户名用户提交后检测是否可用再接着填写详细的.
你去了解这个接口:ICallbackEventHandler。
jquery中的AJAX很好,而且一点就会。