C#, Deserialize json

Question

I have a json like the example bellow and I'm using C# with json.net. I'm trying to deserialize this json into a object, but it's not working.

{
    "classes": [{
        "id": 1,
        "mask": 1,
        "powerType": "rage",
        "name": "Warrior"
    }, {
        "id": 2,
        "mask": 2,
        "powerType": "mana",
        "name": "Paladin"
    }, {
        "id": 3,
        "mask": 4,
        "powerType": "focus",
        "name": "Hunter"
    }, {
        "id": 4,
        "mask": 8,
        "powerType": "energy",
        "name": "Rogue"
    }, {
        "id": 6,
        "mask": 32,
        "powerType": "runic-power",
        "name": "Death Knight"
    }, {
        "id": 12,
        "mask": 2048,
        "powerType": "fury",
        "name": "Demon Hunter"
    }]
}

1) I created a class:

public class ClassJson
{
    [JsonProperty(PropertyName = "classes")]
    public Class Class { get; set; }
}

2) The second class:

public class Class
{
    [JsonProperty(PropertyName = "id", NullValueHandling = NullValueHandling.Ignore)]
    public int Id { get; set; }

    [JsonProperty(PropertyName = "powerType", NullValueHandling = NullValueHandling.Ignore)]
    public string PowerType { get; set; }

    [JsonProperty(PropertyName = "name", NullValueHandling = NullValueHandling.Ignore)]
    public string Name { get; set; }
}

I call the Api, get the json and I simply call JsonConvert.DeserializeObject<List<ClassJson>>(json). Nothing happens, no errors.

Can someone give me a tip in order to structure better the classes?

`classes` in given json represents an array. So you need to declare property as `public Class[] Classes { get; set; }`. That should work. — Chetan, May 27 '17 at 16:41
Try JsonConvert.DeserializeObject(json). classes is a collection property. — Krum Bagashev, May 27 '17 at 16:42
I think 'classes' should be a `List`, or another collection type. Since it is an array in json. — Jesse de Wit, May 27 '17 at 16:43
You can actually just use `IEnumerable`, Newtonsoft will figure it out. — Aluan Haddad, May 27 '17 at 16:46

score 1 · Accepted Answer · answered May 27 '17 at 16:50

1

Try this instead because classes is supposed to be an array:

public class ClassJson
{
    [JsonProperty(PropertyName = "classes")]
    public Class[] classes { get; set; }
}

You do not need to write the classes to represent JSON manually. Refer my answer here on how to create a class representation of your JSON.

answered May 27 '17 at 16:50

CodingYoshi

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Thanks for this tip, I didn't know about this shortcut to create classes given a json ! – Maturano May 27 '17 at 17:19

C#, Deserialize json

1 Answers1