Why seal a class?

Question

I\'d like to hear what is the motivation behind the bulk of sealed classes in the .Net framework. What is the benefit of sealing a class? I cannot fathom how not allowing in

Answer 1

To determine whether to seal a class, method, or property, you should generally consider the following two points:

•The potential benefits that deriving classes might gain through the ability to customize your class.

•The potential that deriving classes could modify your classes in such a way that they would no longer work correctly or as expected.