OnDeserialized for JSON causing object to be null - asp.net-web-api

Question

I have a route on my WebAPI project that accepts an object as input ExportPostData. ExportPostData has a property called "contract" of type Contract which was successfully being populated when I called the route. I added the [OnDeserialized] tag to the Contract class and now it always fails deserialization. There are no errors thrown, just Contract is null. I have no idea how to debug this since my OnDeserialized method never even gets hit.
ExportPostData
public class ExportPostData
{
public Contract contract { get; set; }
public bool includeSubItems { get; set; }
public string user { get; set; }
public string[] projects { get; set; }
}
Contract
public class ZEstimateContract
{
public string _id { get; set; }
public string contractName { get; set; }
public string contractNumber { get; set; }
public string updatedBy { get; set; }
public DateTime updated_at { get; set; }
[OnDeserialized()]
internal void Deserialized()
{
// THIS NEVER GETS HIT
Console.WriteLine("I'm deserialized");
}
}

Answer 1

Change
[OnDeserialized()]
internal void Deserialized()
{
// THIS NEVER GETS HIT
Console.WriteLine("I'm deserialized");
}
to this:
[OnDeserialized]
internal void Deserialized(StreamingContext context)
{
// THIS GETS HIT NOW
Console.WriteLine("I'm deserialized");
}
Without the parameter, the method's signature doesn't match what OnDeserialized is looking for. See this article for details: http://msdn.microsoft.com/en-us/library/system.runtime.serialization.ondeserializedattribute.aspx