Comments on: Block Inheritance

By: vishal

vishal — Thu, 01 Apr 2010 11:03:36 +0000

sorry i mean sealed modifier is used to prevent a class from being inherited by another class. some class are not be inherited in future. so ti inheriting this class by another class we used sealed.

By: vishal

vishal — Thu, 01 Apr 2010 11:01:16 +0000

sealed modifier is used to keep the class inherited.

By: zonke mbindela

zonke mbindela — Thu, 01 Apr 2010 09:28:35 +0000

This test is not related to what i do at work, it is designed for people that work with object orianted programming, so I dont see value in me doing this test.

By: radliwag

radliwag — Sun, 16 Aug 2009 15:14:03 +0000

This can be done by declaring the class as a sealed class.

By: Ashley Visagie

Ashley Visagie — Wed, 29 Apr 2009 04:46:59 +0000

Yes, use the sealed modifier as follows:

sealed class NotInheritable { … }

You would use this to prevent unintential inheritance, or for run-time optimization.

By: Nate

Nate — Thu, 09 Apr 2009 00:30:57 +0000

The above comment is incorrect. Making a class constructor private will not prevent a class from being inherited by another class, it would simply prevent it from being instantiated. The desired functionality would be accomplished by using the “sealed” keyword in the class declaration. (i.e. public sealed class MyClass).

The sealed modifier is primarily used to prevent unintended derivation, such as when a class contains a concrete implementation of an abstract base. In this case the developer of the sealed class would want other implementations to inherit from the abstract base class and instead of inheriting from the sealed concrete implementation. It also enables certain run-time optimizations. In particular, because a sealed class is known to never have any derived classes, it is possible to transform virtual function member invocations on sealed class instances into non-virtual invocations.

By: JR

JR — Wed, 02 Jul 2008 16:44:05 +0000

try the ’sealed’ keyword on the class definition.

sealed class CantInheritMe {}

By: Rodneyk

Rodneyk — Mon, 04 Feb 2008 16:18:27 +0000

In C# the proper way to prevent a class from being inherited is to use the “sealed” modifier.

Sealed classes

By: say it

say it — Thu, 28 Jun 2007 09:07:44 +0000

This can be done by making constructors of the class private and making use of Named constrcutors for the class