How to set the EmitDefaultValue to false globally

Question

I'm using Web API and I've set the below property so that the default value is not displayed when members are serialized:

 [DataMember(EmitDefaultValue = false)]
        public string EventName { get; set; }

I have in total about 20 DataContracts and 100 properties as DataMembers so how would that be possible to set the EmitDefaultValue to false globally for all?

I hope I don't have to write my own logic using Reflection!

Answer 1

In your App_Start folder add this to WebApiConfig

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        config.Formatters.JsonFormatter.SerializerSettings =
            new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore };