CODEWITHSUNDEEP
c#jsonjson.net
Marc.2377
Marc.2377

Reputation: 8704

NewtonSoft JsonConvert.DeserializeObject returns all properties as null

I can't figure out what's wrong with this:

public class Product
{
    public string code { get; set; }
    public string description { get; set; }
    public string tp { get; set; }
}

public class Return
{
    [JsonProperty("products")]
    public List<Product> Products { get; set; }
}

public class BlingJson
{
    [JsonProperty("return")]
    public Return Return { get; set; }
}

public static void Run()
{
    string str = "{ \"return\": { \"products\": [ { \"product\": { \"code\": \"8147-048PA\", \"description\": \"LEGEND 220v - HAIR CUTTER\", \"tp\": \"P\" } }, { \"product\": { \"code\": \"08164-148PA\", \"description\": \"FINALE - HAIR CUTTER\", \"tp\": \"P\" } } ] } }";

    BlingJson json = JsonConvert.DeserializeObject<BlingJson>(str);
}

Upon deserialization, json.Return.Products is a list containing two Products, but all properties (code, description and tp) are null.

Formatted JSON for convenience:

{
    "return": {
        "products": [
            {
                "product": {
                    "code": "8147-048PA",
                    "description": "LEGEND 220v - HAIR CUTTER",
                    "tp": "P"
                }
            },
            {
                "product": {
                    "code": "08164-148PA",
                    "description": "FINALE - HAIR CUTTER",
                    "tp": "P"
                }
            }
        ]
    }
}

I've seen similar questions but didn't find one that applies to this case. How to solve?

Thanks.

Upvotes: 3

Views: 417

Answers (2)

kowsikbabu
kowsikbabu

Reputation: 509

You can either use a Wrapper class as mentioned by @DavidG to get it working per the given Json format. However, if you can't change your class, you have to tune your Json to this format:

{
    "return": {
        "products": [
            {
                "code": "A",
                "description": "B",
                "tp": "C"
            },
            {
                "code": "D",
                "description": "E",
                "tp": "F"
            }
        ]
    }
}

Upvotes: 1

DavidG
DavidG

Reputation: 118937

Your JSON implies you need a wrapper around the product object. For example:

public class ProductWrapper
{
    public Product Product { get; set; }
}

Which makes you Return class look like this:

public class Return
{
    [JsonProperty("products")]
    public List<ProductWrapper> Products { get; set; }
}

Upvotes: 3

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