getting a "default" concrete class that implements an interface
- by Roger Joys
I am implementing a custom (and generic) Json.net serializer and hit a bump in the road that I could use some help on.
When the deserializer is mapping to a property that is an interface, how can I best determine what sort of object to construct to deserialize to to place into the interface property.
I have the following:
[JsonConverter(typeof(MyCustomSerializer<foo>))]
class foo
{
int Int1 { get; set; }
IList<string> StringList {get; set; }
}
My serializer properly serializes this object, and but when it comes back in, and I try to map the json parts to to object, I have a JArray and an interface.
I am currently instantiating anything enumerable like List as
theList = Activator.CreateInstance(property.PropertyType);
This works create to work with in the deserialization process, but when the property is IList, I get runtime complaints (obviously) about not being able to instantiate an interface.
So how would I know what type of concrete class to create in a case like this?
Thank you
