Ajax 调用自写的webservice
1、新建一个AJAXEnabledWebSite
2、“添加新项”--“SimpleService.asmx”，在SimpleService.cs添加代码：
[System.Web.Script.Services.ScriptService()]
然后把原来的HelloWorld方法改为SayHello（）方法
SimpleService.cs完整代码如下：
using System;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
/// <summary>
/// SimpleService 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.Web.Script.Services.ScriptService()]
public class SimpleService : System.Web.Services.WebService {
public SimpleService () {
//如果使用设计的组件，请取消注释以下行
//InitializeComponent();
}
[WebMethod]
public string SayHello(string Name)
{
return "Hello: "+Name;
}
}
3、在Default.aspx添加input（Text）和input（Button）两个控件。双击button，
在<script language="javascript" type="text/javascript">...</script>中添加javascript处理代码
Default.aspx完整代码如下：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
<script language="javascript" type="text/javascript">
<!--
function Button1_onclick()
{
ret=SimpleService.SayHello(document.getElementById('Text1').value, OnComplete, OnTimeOut, OnError);
return(true);
}
function OnComplete(arg) {
alert(arg);
}
function OnTimeOut(arg) {
alert("TimeOut encountered when calling Say Hello.");
}
function OnError(arg) {
alert("Error encountered when calling Say Hello.");
}
// -->
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" >
<Services>
<asp:ServiceReference Path="SimpleService.asmx" />
</Services>
</asp:ScriptManager>
<br />
<div>
<input id="Text1" type="text" /> <br />
<br />
<input id="Button1" style="width: 200px" type="button" value="SayHello" language="javascript" onclick="return Button1_onclick()" /></div>
</form>
</body>
</html>
4、完成，详细信息请看http://asp.net/learn/ajax-videos/中的video5。