Best way to create an instance of run-time determined type [duplicate]

Answer 1

You are looking for Activator.CreateInstance (there are also other overloads, such as this one that accepts constructor arguments). So you could write

var anotherOneLikeMe = Activator.CreateInstance(this.GetType());

There may be a problem here in that anotherOneLikeMe is going to be typed as object, so unless you intend to cast it to a common base class (e.g. BaseClass in your example) there's not much that you can do with it.