Deserializing Key-Value Pair

Question

Hi I am getting a response from server which is something like this

{"total":110,"responses":{"13":26,"14":24,"15":40,"16":20}}

I am not able to deserialize it using DataContractJSONSerializer. I have tried various combination for it but no results. I am using following class for de-serializing:

public class PollResponseRoot
{
    public int total { get; set; }
    public Dictionary<int, int> Responses;

}

but I always get the Response value null. Please let me know where I am going wrong.

what does that mean, excuse me for my naiveness i am new to .net and wp7 — Avijeet, Nov 18 '11 at 06:54
I'm just letting you know the problem is not in the format of the JSON string. — Jonathan M, Nov 18 '11 at 06:55
yeah, thanks for that, strange thing if i change the name of the Dictionary in my class from Responses to responses , i get argument exception. while De-serializing — Avijeet, Nov 18 '11 at 06:59
How about public Dictionary responses; Oh and mark the class as a DataContractAttribute and the properties as DataMember. You could also specify [DataMember(Name="responses")] to leave the property name properly PascalCased. — Filip Skakun, Nov 18 '11 at 07:15

score 2 · Accepted Answer · edited Nov 18 '11 at 07:51

2

Dictionaries are not supported by DataContractJsonSerializer, you could try your luck with Json.Net instead.

Also available on NuGet: http://nuget.org/List/Packages/Newtonsoft.Json

edited Nov 18 '11 at 07:51

Claus Jørgensen

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answered Nov 18 '11 at 07:15

Bendik Nilsen Aune

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Bendik json.net is available for windows phone 7 ?, i tried including the .net3.5 binaries and got a warning that "including this lib can have unexpected application behavior" – Avijeet Nov 18 '11 at 07:28
Json.net should be very much available on wp7, i have used on several occasions, but you need the 4.0 version or you could just add it to the project by using NuGet – Bendik Nilsen Aune Nov 18 '11 at 07:44

score 2 · Answer 2 · edited May 23 '17 at 12:21

2

See my explanation on a similar question why it's not possible to decode such lists using DataContractJsonSerializer. Use Json.NET instead.

edited May 23 '17 at 12:21

Community

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answered Nov 18 '11 at 07:55

Heinrich Ulbricht

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Deserializing Key-Value Pair

2 Answers2