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Virtual function in c#

explain virtual function in c# with an example

Total Answers and Comments: 2

Last Update: October 01, 2008 Asked by: isaacsundarsingh

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Best Rated Answer

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Submitted by: bb.geetha

Virtual functions implement the concept of polymorphism are the same as in C#, except that you use the override keyword with the virtual function implementaion in the child class. The parent class uses the same virtual keyword. Every class that overrides the virtual method will use the override keyword.

class Shape
{
    public virtual void Draw()
    {
        Console.WriteLine("Shape.Draw")    ;
    }
}

class Rectangle : Shape

{
    public override void Draw()
    {
        Console.WriteLine("Rectangle.Draw");
    }
}

Above answer was rated as good by the following members:
rajanikanth99488, ponvanaraja, YordanGeorgiev, mukta1902

June 06, 2008 02:47:45

bb.geetha

Member Since: May 2008 Contribution: 8

RE: Virtual function in c#

Virtual functions implement the concept of polymorphism are the same as in C#, except that you use the override keyword with the virtual function implementaion in the child class. The parent class uses the same virtual keyword. Every class that overrides the virtual method will use the override keyword.

class Shape
{
    public virtual void Draw()
    {
        Console.WriteLine("Shape.Draw")    ;
    }
}

class Rectangle : Shape

{
    public override void Draw()
    {
        Console.WriteLine("Rectangle.Draw");
    }
}

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Overall Rating: +4

October 01, 2008 21:14:11

ynvpavan

Member Since: September 2007 Contribution: 16

RE: Virtual function in c#

Virtulal function can not be instatntiated. Declaring a function as virtual tells the compiler that this function is being overrided by the child one's

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