Use typeof in a generic class

Question

I create a Generic class as follows:

public class Sample<T> where T : class { public DoSomething(); } 

then I create a new class:

 public class Sample2 { Sample<Sample2> obj=new Sample<Sample2>(); } 

Why can't I use the code below to instantiate the Sample class in the Sample2 class?

  Sample<typeof<this>> obj=new Sample<typeof<this>>(); 

Answer 1

The answer is simple. General characteristics should be Compile time , but what you are doing is obviously not known during Compile time