反序列化json數組以列出wp7

Question

我需要從json中的子數組中獲取數據，但是它沒有轉換成列表，下面是我的json字符串

{“responseCode”：“0”，“responseObject”：{“TotalRecords”：25，“TotalDisplayRecords”：25，“aaData”：[{“InvoiceId”：16573，“somedata ..}，”appCrmAccount（某些標題，總共100個這樣的標題）金額“：40086.00，”invoiceNumber“：”12，accountName“：”dfgAsfsadf“，”dueDateStr“：”04/24/2012“（要進入列表的數據）

這是我的代碼：

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

請幫助..在此先感謝。

Answer 1

嘗試這個

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

並且需要解析返回的JSON，如下所示。 在創建DataContractJsonSrrializer實例的參數中，我們傳遞了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

您應該標記所有類和屬性DataContract和DataMember屬性。 使用你的代碼片段我創建了這樣的東西：

[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

你需要做的是將數組元素作為DataContract返回，將其子成員作為DataMember作為

[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......