Model is always null when date-time field is serialized in C# - Restsharp

Question

I am having an issue with simple serialization and deserialization in C#.

I am using RestSharp to call a webapi method (REST method).

Model is:

public class MyModel
{
  public DateTime date {get;set;}
}

Controller Method:

[RoutePrefix("Test")]
public class ValuesController : ApiController
{
    [Route("~/Date")]
    [HttpPost]
    public IHttpActionResult Post([FromBody] MyModel model)
    {
        if (model == null)
          return NotOk();

        return Ok();
    }
}

But unfortunately, the model is always null when using xml .

Restsharp Client:

var restRequest = new RestRequest(@"http://localhost:50099/Date", Method.POST)
{
      RequestFormat = DataFormat.Xml,
};

restRequest.AddBody(new MyModel(), "");

----> when data format is xml , the model is null.

Restsharp Client:

var restRequest = new RestRequest(@"http://localhost:50099/Date", Method.POST)
{
      RequestFormat = DataFormat.Json,
};

restRequest.AddBody(new MyModel(), "");

-----> when data format is json, the model is not null. The date property is default.

Answer 1

Answered here .

In short, I set DataContractSerializer to be true while initializing Json serializer . This DataContractSerializer expected date in epoch format and hence the issue.