jQuery调用WebMethod(PageMethod) NET2.0的方法

<httpModules>   <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/></httpModules>

ScriptMethod(ResponseFormat = ResponseFormat.Json)][WebMethod]/// <summary>/// 是否允许注册/// </summary>/// <param name="MemberLoginID"></param>/// <returns></returns>public static MemberInfo AllowRegist(string MemberLoginID){    return new MemberInfo();//由于设置了返回类型是JSON,所以客户端的JQ能够识别    // MemberInfoBLL mi = new MemberInfoBLL();    //if (!mi.ExistMember(MemberLoginID))      //return "{d:true}";//我测试发现,客户段在接收数据的时候,会多了2个双引号,导致转换JSON格式失败..郁闷    //else      //return "{d:false}";}

$.ajax({    cache:false,    type: 'POST',    contentType: 'application/json; charset=utf-8',    data: "{'MemberLoginID':'" + $("#<%=MemberLoginID.ClientID %>").val() + "'}",    dataType: 'json',    url: 'Reg.aspx/getDate',    success: function(result,x,y) {      alert(result);    },    beforeSend:function (xhr) {      xhr.setRequestHeader('If-Modified-Since', '0');      //this; // 调用本次AJAX请求时传递的options参数    },    error: function(e) {      debugger; //alert("可能服务器忙没有返回数据，请重试");    }});