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In C#, override is enabled by default so, is there no need to explicitly declare a method as overridable in the base class? If so
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When a derived class or child class defines a function that is already defined in the base class or parent class, it is called function overriding in C++. Function overriding helps us achieve runtime polymorphism.
The virtual keyword can be used when declaring overriding functions in a derived class, but it is unnecessary; overrides of virtual functions are always virtual. Virtual functions in a base class must be defined unless they are declared using the pure-specifier.
The virtual keyword is used to modify a method, property, indexer, or event declared in the base class and allow it to be overridden in the derived class. The override keyword is used to extend or modify a virtual/abstract method, property, indexer, or event of base class into a derived class.
The override modifier extends the base class virtual method, and the new modifier hides an accessible base class method. The difference is illustrated in the examples in this topic. In a console application, declare the following two classes, BaseClass and DerivedClass .
The Overridable keyword in VB corresponds to the virtual keyword in C#.
You have to make a method virtual to be able to override it. Abstract methods are automatically virtual.
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In C#, any method marked as 'virtual' can be overridden. Methods marked as 'abstract' are not necessarily overridden, they are implemented in classes that implement the abstract class. They can be marked as virtual in the implementation. There is no limit to the number of times a virtual method can be overridden.
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