Question

我需要从json中的子数组中获取数据，但是它没有转换成列表，下面是我的json字符串

{“responseCode”：“0”，“responseObject”：{“TotalRecords”：25，“TotalDisplayRecords”：25，“aaData”：[{“InvoiceId”：16573，“somedata ..}，”appCrmAccount（一些标题，共100个这样的标题）金额“：40086.00，”invoiceNumber“：”12，accountName“：”dfgAsfsadf“，”dueDateStr“：”04/24/2012“（数据将进入列表）

这是我的代码：

var djson = new DataContractJsonSerializer(typeof(dataList));
var stream = new MemoryStream(Encoding.UTF8.GetBytes(json));
dataList result = (dataList)djson.ReadObject(stream);//not getting execute

请帮助.. 在此先感谢。

Answer 1

试试这个

private void btnAdd_Click(object sender, RoutedEventArgs e)
{
    WebClient proxy = new WebClient();
    proxy.DownloadStringCompleted += new DownloadStringCompletedEventHandler(proxy_DownloadStringCompleted);
    proxy.DownloadStringAsync(new Uri(""));
}

需要解析返回的JSON，如下所示。在创建DataContractJsonSrrializer实例的参数中，我们传递了List of Student。

void proxy_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
    Stream stream = new MemoryStream(Encoding.Unicode.GetBytes(e.Result));

    DataContractJsonSerializer obj = new DataContractJsonSerializer(typeof(List<Student>));
    List<Student> result = obj.ReadObject(stream) as List<Student>;
    lstStudents.ItemsSource = result;
}

Answer 2

您应该标记所有类和属性DataContract和DataMember属性。使用你的代码片段我创建了这样的东西：

[DataContract]
    public class Result
    {
        [DataMember(Name="responseCode")]
        public int Code { get; set; }

        [DataMember(Name="responseObject")]
        public ResponseObject Result { get; set; }
    }

    [DataContract]
    public class ResponseObject
    {
        [DataMember]
        public int TotalRecords { get; set; }

        [DataMember]
        public int TotalDisplayRecords { get; set; }

        [DataMember(Name="aaData")]
        public DataItem[] Data { get; set; }
    }

    [DataContract]
    public class DataItem
    {
        [DataMember(Name = "InvoiceId")]
        public int InvoiceId { get; set; }

        // Others properties
    }

Answer 3

你需要做的是将数组元素作为DataContract返回，将其子成员作为DataMember作为

[DataContract] 
public class mainresponse
 {
 [DataMember]
 public resultmap arrayelement { get; set; }
 }  
 [DataContract]
 public class resultmap 
{
 [DataMember] 
 public string substringhere { get; set; } 
 }     
 var djson = new DataContractJsonSerializer(typeof(Mainresponse));
 var stream = new MemoryStream(Encoding.UTF8.GetBytes(responsestring));
 mainresponse result = (mainresponse)djson.ReadObject(stream);

它......

反序列化json数组以列出wp7

3 个答案: