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What's the use of pure virtual function in c#?

Posted By :Deco     Posted Date :September 22, 2010    Points :10   Category :OOPS 
The virtual function is used to allow the subclasses to provide implementation for that method using the keyword override.

class MyClass
{
public void MyMethod()
{
Console.WriteLine("MyClass.MyMethod is called");
}
public virtual void MyVirtualMethod()
{
Console.WriteLine("MyClass.MyVirtualMethod is called");
}
}

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Explain 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.


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What is Method Overriding? How to override a function in C#?

  
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Define precondition and post-condition to a member function.

  
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Sub ShowName(ByVal myName As String)
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What are virtual path providers?

  
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