Question

If I have JSON data such as:

{
"datapoints":[ [null, 1234567890, "point1"], [null, 1234567890, "point2"] ]
}

Is there a way to deserialize that data into the following classes:

public class Result 
{
    public DataPoint[] DataPoints {get;set;}
}

public class DataPoint
{
   public string Name {get;set;}
   public string Value {get;set;}
   public DateTime Timestamp {get;set;}
}

Can I specify the index of which array member to serialize into which property?

Answer 1

If you are open to some custom deserialization using Json.Net

string json = @"{""datapoints"":[ [null, 1234567890, ""point1""], [null, 1234567890, ""point2""] ]}";
var result = (JObject)JsonConvert.DeserializeObject(json);
var dataPoints = result["datapoints"]
            .Select(t => new DataPoint() 
             {
                Timestamp = String.IsNullOrEmpty(t[0].ToString()) ? DateTime.MinValue : DateTime.Parse(t[0].ToString()),
                Value = t[1].ToString(),
                Name= t[2].ToString()
             })
            .ToArray();

PS: Timestamp may need some more work depending on the format.