How to Serialize a PagedResult Object with Json.Net?

Serializing PagedResult Using Json.Net

Json.Net treats classes implementing IEnumerable as arrays. Decorating the derived class with [JsonObject] will serialize only derived class members, omitting the list.

Solution 1: Expose List Property

As suggested by Konrad, create a public property on the derived class to expose the list:

class PagedResult<T> : List<T>
{
    public IEnumerable<T> Items { get { return this; } }
}

Solution 2: Custom JsonConverter

Alternatively, create a custom JsonConverter to serialize the entire object:

class PagedResultConverter<T> : JsonConverter
{
    // ... (implementation as provided in the answer) ...
}

Add the converter to the JsonSerializerSettings:

JsonSerializerSettings settings = new JsonSerializerSettings();
settings.Converters.Add(new PagedResultConverter<T>());

Example Usage

Here is an example demonstrating the use of the converter:

PagedResult<string> result = new PagedResult<string> { "foo", "bar", "baz" };
// ... (populate other properties) ...

string json = JsonConvert.SerializeObject(result, settings);

Output:

{
  "PageSize": 10,
  "PageIndex": 0,
  "TotalItems": 3,
  "TotalPages": 1,
  "Items": [
    "foo",
    "bar",
    "baz"
  ]
}

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