prevent property from being serialized in web API

The Solution to prevent property from being serialized in web API is


ASP.NET Web API uses Json.Net as default formatter, so if your application just only uses JSON as data format, you can use [JsonIgnore] to ignore property for serialization:

public class Foo
{
    public int Id { get; set; }
    public string Name { get; set; }

    [JsonIgnore]
    public List<Something> Somethings { get; set; }
}

But, this way does not support XML format. So, in case your application has to support XML format more (or only support XML), instead of using Json.Net, you should use [DataContract] which supports both JSON and XML:

[DataContract]
public class Foo
{
    [DataMember]
    public int Id { get; set; }
    [DataMember]
    public string Name { get; set; }

    //Ignore by default
    public List<Something> Somethings { get; set; }
}

For more understanding, you can read the official article.

~ Answered on 2012-08-07 17:56:06


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