Question

I dynamically create instances of my objects in the custom linq provider I am building using this call:

 object result = Activator.CreateInstance(typeof(T));

My T type implements an abstract class that has a constructor to take an instance of another object (T is essentially a wrapper). My question is – is there a way I can explicitly call the non-default constructor so I can get rid of this:

 MyEntity entity = result as MyEntity;
 if(entity != null)
    entity.UnderlyingEntity = e; //where e is what I am wrapping 

Answer 1

Yes, just supply the constructor arguments after the Type object, like so:

object result = Activator.CreateInstance(typeof(T), arg1, arg2, ...);