How do deserialize JSON using JSON.NET & c# without getting null properties

Question

I am using JSON.NET to deserialize but having the object instantiated with all its properties set to null.

JSON

{
    "verify-purchase":
    {
        "item_name":"Pipeline.NET Task Scheduler",
        "item_id":"1111111",
        "created_at":"Wed Jun 12 15:56:02 +1000 2013",
        "buyer":"xxxxxxxx",
        "licence":"Regular License"
    }
}

C# Class

public class VerifyPurchase
{
     [JsonProperty("item_name")]
     public string ItemName { get; set; }

     [JsonProperty("item_id")]
     public string ItemId { get; set; }

     [JsonProperty("created_at")]
     public string CreatedAt { get; set; }

     [JsonProperty("buyer")]
     public string Buyer { get; set; }

     [JsonProperty("licence")]
     public string Licence { get; set; }
}

C# Deserialization

var purchase = JsonConvert.DeserializeObject<VerifyPurchase>(jsonText);

This seems simple enough. What is going wrong here to result in NULL properties?

Darin Dimitrov · Accepted Answer · 2014-01-21 13:11:21Z

1

You could have a wrapper class allowing you to specify the verify-purchase property:

public class Wrapper
{
    [JsonProperty("verify-purchase")]
    public VerifyPurchase Purchase { get; set; }
}

that you would deserialize:

var wrapper = JsonConvert.DeserializeObject<Wrapper>(jsonText);
VerifyPurchase purchase = wrapper.Purchase;
// the purchase.* properties should be assigned at this stage

answered Jan 21, 2014 at 13:11

Darin Dimitrov

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1 Comment

Observer Over a year ago

I tried the wrapper before but didn't include the attribute. Thanks for the solution.

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