Ajax-enabled WCF Service和普通的WCF Service有什么区别？

如题：

我试图在一个web的客户端，利用Script Manager控件去加载一个普通的WCF Service，代码如下：

html 代码

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>

    <script type="text/javascript">
        function OnTest() {
            var ajaxClient = new AjaxTest1.IHelloWorldService();
            ajaxClient.DoWork(OnComplete, OnError);
        }

        function OnComplete(result) {
            document.getElementById("txt").value = result.toString();
        }

        function OnError(result) {
            alert(result.toString());
        }
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
            <Services>
                <asp:ServiceReference Path="http://localhost/WCFTest/HelloWorldSVC.svc" />
            </Services>
        </asp:ScriptManager>
        <input id="txt" type="text" />
        <input type="button" onclick="OnTest()" value="Button" />
    </div>
    </form>
</body>
</html>

WCF 代码

[ServiceContract(Namespace = "AjaxTest1")]
    public interface IHelloWorldService
    {
        [OperationContract]
        string DoWork();
    }

[ServiceBehavior(TransactionIsolationLevel = IsolationLevel.Serializable)]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class HelloWorldService : IHelloWorldService
    {
        public string DoWork()
        {
            return "Hello World!";
        }
    }

但是总是提示如下错误：

Error: 'AjaxTest1' is undefined

哪个大虾帮帮忙？？？？小弟在此拜谢~~~

慕容708150

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Ajax-enabled WCF Service和普通的WCF Service有什么区别？

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