Question

I have the following method:

[HttpPost]
[AjaxOnly]
public JsonResult ValidateInput(string text)
{
    return new EmptyJsonResult();
}

/// <summary>
/// returns a JSON result that is marked as being empty.
/// </summary>
public sealed class EmptyJsonResult : JsonResult
{
    public EmptyJsonResult()
    {
        Data = new JsonResultData
        {
            Empty = true
        };
    }
}

public class JsonResultData
{
    public bool Empty { get; set; }
    public string[] Errors { get; set; }
}

I expected this to return {"Empty":true} to the browser, but it returns {"Empty":true,"Errors":null} instead.

Is there any attribute or something I can set in order to avoid returning nulls on objects I didn’t populate?

Answer 1

Does it make any difference for you if you simply return an anon object?

    public EmptyJsonResult()
    {
    Data = new
        {
            Empty = true
        };
    }