关于c＃：jQuery，JSON和ASP.NET PageMethods

jQuery, JSON and ASP.NET PageMethods

找到一篇关于使用jquery使用codebehind webmethod的好文章。我正在尝试在我的网站上应用它。但我一直得到以下错误，尽管我确保参数名是相同的。

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$(".StreamLike").live("mouseover", function () {
var Id = $(this).parent().parent().find(".StreamIndex").html();
alert(Id);
$.ajax({
type: 'POST',
url: 'Default.aspx/GetLikes',
data: {"Id": Id },
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: LikesSuccess,
error: LikesError
});
});

function LikesSuccess(result, userContext, methodName) {
for (var i in result) {
alert(result[i]);
}

WebMethod：

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[WebMethod]
public static string[] GetLikes(int Id)
{
List<Like> Likes = Like.GetById(Id, false);
string[] Senders = new string[Likes.Count];
for (int i = 0; i < Likes.Count; i++)
{
Senders[i] = Likes[i].Sender;
}
return Senders;
}

完整的错误信息如下：

{"Message":"Invalid JSON primitive: Id.","StackTrace":" at
System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()

at
System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32
depth)

at
System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String
input, Int32 depthLimit, JavaScriptSerializer serializer)

at
System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer
serializer, String input, Type type, Int32 depthLimit)

at
System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String
input)

at
System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext
context, JavaScriptSerializer serializer)

at
System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData
methodData, HttpContext context)

at
System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext
context, WebServiceMethodData
methodData)","ExceptionType":"System.ArgumentException"}

它总是像镜子一样…

试试这个…

数据：json.stringify("id"：id)

文章将你的"id"对象转换成名称/值对。例如，ID＝12345。你必须先将对象串起来。