C# 4.0: Dynamic, Inheriting from DynamicObject

Question

Let's say I have this:

dynamic foo = new Foobar();

And I have this:

public class Foobar : DynamicObject
{

}

The question is, is it possible to override members of DynamicObject so that this code:

string name = new Foobar().Name

Does not throw an Exception at run-time? I want to return default for name's if Name is not a member.

Possible? What do I need to override?

Answer 1

Override TryGetMember (and TrySetMember). Classes derived from the DynamicObject class can override this method to specify dynamic behavior for operations such as getting a value for a property.

http://msdn.microsoft.com/en-us/library/system.dynamic.dynamicobject.aspx http://msdn.microsoft.com/en-us/library/system.dynamic.dynamicobject.trygetmember.aspx