将json数据发送到ASP.NET WebMethod的jquery问题

我已经阅读了有关此问题的所有问题，但没有设法解决它…

分数类：

public class Score { // default constructor public Score() { } public int TraitID { get; set; } public double TraitScore { get; set; } } 

ASPX WebMethod：

  [WebMethod] public static bool Test(List scores) { return true; } 

jQuery代码：

  var scoresList = [{"TraitID":1,"TraitScore":2}, {"TraitID":2,"TraitScore":5}]; $.ajax({ type: "POST", url: "Tryouts.aspx/Test", data: "{'scores':" + JSON.stringify(scoresList) + "}", contentType: "application/json; charset=utf-8", dataType: "json", success: function (response) { if (response.d == true) { alert("success!!!!!"); } else { alert("problem!!!!!!!!!"); } }, error: function () { alert("ERROR"); } }); 

我一直收到错误：

 {"Message":"Cannot convert object of type \u0027System.String\u0027 to type \u0027System.Collections.Generic.List`1[BusinessLogicLayer.Score]\u0027","StackTrace":" at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n at System.Web.Script.Services.WebServiceMethodData.StrongTypeParameters(IDictionary`2 rawParams)\r\n at System.Web.Script.Services.WebServiceMethodData.CallMethodFromRawParams(Object target, IDictionary`2 parameters)\r\n at System.Web.Script.Services.RestHandler.InvokeMethod(HttpContext context, WebServiceMethodData methodData, IDictionary`2 rawParams)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.InvalidOperationException"} 

谢谢 ！！！

Answer 1

我在Web方法中将自定义对象的数组传递给List，它运行得很好。

我猜，由于属性名称周围的引号，你有一个小的JSON格式问题。 尝试将对象更改为：

 var scoresList = [{TraitID:1, TraitScore:2}, {TraitID:2, TraitScore:5}]; 

并将您的数据行更改为：

 data: JSON.stringify({ scores : scoresList }), 

希望有帮助……

更新：工作示例……

这是代码隐藏：

 public class Score { // default constructor public Score() { } public int TraitID { get; set; } public double TraitScore { get; set; } } [WebMethod] public static bool Test( List scores ) { return true; }