<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>/// 是否允許注冊/// </summary>/// <param name="MemberLoginID"></param>/// <returns></returns>public static MemberInfo AllowRegist(string MemberLoginID){    return new MemberInfo();//由于設置了返回類型是JSON,所以客戶端的JQ能夠識別    // MemberInfoBLL mi = new MemberInfoBLL();    //if (!mi.ExistMember(MemberLoginID))      //return "{d:true}";//我測試發(fā)現(xiàn),客戶段在接收數(shù)據(jù)的時候,會多了2個雙引號,導致轉(zhuǎn)換JSON格式失敗..郁悶    //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; // 調(diào)用本次AJAX請求時傳遞的options參數(shù)    },    error: function(e) {      debugger; //alert("可能服務器忙沒有返回數(shù)據(jù)，請重試");    }});