What is Override?

Override, in C#, is a key-word used to UPDATE a Digital member that is described in a Base Class with the defiNition of that member within the derived elegance.

The override modifier permits Programmers to specify the specialization of an Current digital member inherited from a base elegance to provide a brand new Implementation of that member within the Derived Class. It can be used with a technique, belongings, Indexer or an occasion that needs to be modified or extended in a derived Class.

The override modifier is supposed to put into effect the idea of Polymorphism in C#.

Override differs from new modifiers in that the previous is used handiest to override a digital member of a base elegance while the latter additionally enables to override a non-digital member defined in a base elegance via hiding the definition contained inside the base elegance.

What Does Override Mean?

Override is normally used inside the Context of Virtual Method, in which the execution of a sort of approach is decided with the aid of the runtime type of the Instance on which the technique is invoked. During the invocation, the caller need not recognise that the called item become an example of derived elegance.

For example, if Shape is a base elegance that gives the primary implementation that is not unusual for all the Objects of its class, it could be defined with a virtual Method, CalculateArea. Square may be a class derived from Shape, that could override the CalculateArea technique to put in force the good judgment important for calculating the vicinity of a rectangular.

To override a method in a derived magNiFicence:

• The method within the base class must be declared with digital modifier.
• The technique inside the base magnificence may be abstract but no longer Static.
• The get right of entry to modifier of the technique in both base and derived lessons need to be the equal.
• The technique have to be defined with the identical signature in both derived and base classes.