Best way to prevent a class from being Instantiated?

Question

I need to know how to prevent a class from being Instantiated in .net?

I know few methods like making the class Abstract and Static.

Is there any more way to

Answer 1

I need to know how to prevent a class from being Instantiated in .net?

Your question is not clear.

Do you mean instantiated at runtime? Make the class abstract or static.

Do you mean that the constructor is not accessible in code? Make the constructor private. But note that someone could still use reflection to grab a handle on a constructor and instantiate an instance at runtime.

So, which do you mean?