c# types and creating new instance of class

Question

I recently took a test on c#.  I've been struggling to find the correct answer to this question for 2 days now:

Which one of the following types allows you to create a new instance of a class?
A)  CreateObject
B)  MemberInfo
C)  TypeToken
D)  FieldInfo
E)  ConstructorInfo

Choice (A) is a VB method.  Choice (C) is a structure.  That leaves (B), (D), and (E) - all of which are classes that can be inherited from.  Am I totally missing the point of the question?

Answer 1

Check out the ConstructorInfo.Invoke method:

http://msdn.microsoft.com/en-us/library/system.reflection.constructorinfo.invoke.aspx

Answer 2

Ohh, ok.  The return type is an instance of the class - exactly what the question is asking.  Where would this be used instead of the common "new" operator?


ps thanks for the help!

Answer 3

U can use this in case of reflection.

For eg: u may develop an application where u will plug in several classes later (after deployment)

And for avoiding recomplilation u can just deploy ur dll and give the information to the initiator class (say thru an XML file) to load the new dll.