WebAPI does not return JSON for INT when value is zero

Question

I have this class as a clipped version:

public class SportTableRow { public Int32 Won { get; set; } public Int32 Lost { get; set; } public Int32 Drawn { get; set; } public Int32 For { get; set; } } 

When I make a data call via WebAPI, it looks like this (cut again) ...

 public List<SportTableRow> Get() { var options = .... var sport = .... var locationCode = ... return SportManager.GetOverallTable(sport, options, locationCode).TableRows; } 

When I check the returned data in the debugger, you can see the properties in the list ...

But, when I call through the violinist, you can see that some properties are missing ...

... and it seems like any Int that is 0, and bool that are false, etc.

Do I need to install something in the current class or something in the JSON serializer?

Answer 1

The default JSON JSON.NET serializer throws an exception for properties that are set to default values. For example, boolean=false , int=0 , int?=null , object=null , etc. Will be excluded from received JSON. The goal is to minimize bandwidth.

You can change this behavior by changing the settings:

  System.Web.Http .GlobalConfiguration.Configuration .Formatters .JsonFormatter .SerializerSettings .DefaultValueHandling = Newtonsoft.Json.DefaultValueHandling.Include; 

It is best to add this line to the Global.asax file. But note: this will simply add bandwidth without real benefits, especially if you also control the client side.