Code Providers – Seal Class
This is one of the simplest code provider operations which simply marks the active class as ‘sealed’ (CSharp) or ‘NotInheritable‘ (Visual Basic). The sealed modifier is used to prevent inheriting from a class. For example, this can be useful when creating ‘helper’ classes containing utility methods that should never be extended by overriding the existing functionality. Another benefit of this code provider is that it enables a hypothetical run-time optimization, because having a sealed class known to never have any derivations; it is possible for the compiler to transform virtual function member invocations into non-virtual which take less time to perform.
CSharp preview:

Visual Basic preview:
