Can I override a property in c#? How?

Question

I have this Base class:

abstract class Base {   public int x   {     get { throw new NotImplementedException(); }   } } 

And the following descendant:

class Derived : Base {   public int x   {     get { //Actual Implementaion }   } } 

When I compile I get this warning saying Derived class's definition of x is gonna hide Base's version of it. Is is possible to override properties in c# like methods?

Answer 1

You need to use virtual keyword

abstract class Base {   // use virtual keyword   public virtual int x   {     get { throw new NotImplementedException(); }   } } 

or define an abstract property:

abstract class Base {   // use abstract keyword   public abstract int x { get; } } 

and use override keyword when in the child:

abstract class Derived : Base {   // use override keyword   public override int x { get { ... } } } 

If you're NOT going to override, you can use new keyword on the method to hide the parent's definition.

abstract class Derived : Base {   // use new keyword   public new int x { get { ... } } }