I am new to Silverlight and .net architecture. I am working on a Windows Phone 7 project. where i receive some JSON format data from the server. I receive the data from the server ine the callback of webClient interface. however i am not able to de serialize the data in c# objects. I am using following code
public void GetData_Completed(object sender, DownloadStringCompletedEventArgs e)
{
byte[] encodedString = Encoding.UTF8.GetBytes(e.Result);
//// Put the byte array into a stream and rewind it to the beginning
MemoryStream ms = new MemoryStream(encodedString);
ms.Flush();
ms.Position = 0;
// convert json result to model
Stream stream = ms;
DataContractJsonSerializer dataContractJsonSerializer = new DataContractJsonSerializer(typeof(SchedulesResults));
SchedulesResults myResults =
(SchedulesResults)dataContractJsonSerializer.ReadObject(stream);
var result = myResults;
}
the data format that i am supposed to get is like this
schedules: [
{
id: 2897
progress: -9
state: complete
starts_at: 1315267800
primary_topic: {
id: 13
}
secondary_topic: {
id: 9
}
scores: [
{
schedule_id: 2897
score: 0
topic_id: 13
}
{
schedule_id: 2897
score: 4
topic_id: 9
}
]
}
.
.
.
and this is the class that i am using to de serilaize
public class SchedulesResults
{
/// <summary>
/// Gets or sets the results.
/// </summary>
/// <value>The results.</value>
public Schedules[] results { get; set; }
}
public class Schedules
{
int id { get; set; }
int progress { get; set; }
string state { get; set; }
DateTime starts_at { get; set; }
primary_topic primary_topic_ID { get; set; }
secondry_topic secondary_topic_ID { get; set; }
Scores[] scores { get; set; }
}
public class primary_topic
{
int id { get; set; }
}
public class secondry_topic
{
int id { get; set; }
}
public class Scores
{
int schedule_id{ get; set; }
int score { get; set; }
int topic_id { get; set; }
}
but on de serializing i am getting null in the value. please tell me where i might be going wrong.
This is the type of data i am getting from server
{"schedules":[{"id":3499,"progress":-9,"state":"complete","starts_at":131794560开发者_如何转开发0,"primary_topic":{"id":6},"secondary_topic":{"id":11},"scores":[{"schedule_id":3499,"score":2,"topic_id":6},{"schedule_id":3499,"score":3,"topic_id":11}]},
Looks to me like the property in ScheduleResults
should be schedules
, not results
.
I mean this:
public class SchedulesResults
{
/// <summary>
/// Gets or sets the results.
/// </summary>
/// <value>The results.</value>
public Schedules[] results { get; set; }
}
Should be this:
public class SchedulesResults
{
/// <summary>
/// Gets or sets the results.
/// </summary>
/// <value>The results.</value>
public Schedules[] schedules { get; set; }
}
You're appearing to try and deserialize the response as an instance of MyCLASS
but, (from the code available) it looks like it should be of type SchedulesResults
.
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