Question

If i have an interface:

interface IFoo {     int Offset {get;} } 

can i have this:

interface IBar: IFoo {        int Offset {set;} } 

so consumers of IBar will be able to set or get?

Answer 1

No, you can’t!

(I was about to write ‘Yes’, but after reading Anthony’s post, and trying out a few tweaks, I found the answer to be NO!)

class FooBar : IFoo, IBar {     public int Offset{get;set;} } 

(Will generate a warning as Anthony points out, which can be fixed by adding the ‘new’ keyword.)

When trying out the code:

IBar a = new FooBar(); a.Offset = 2; int b = a.Offset; 

The last line will generate a compile error, since you have hidden IBar’s Offset setter.

EDIT: Fixed the accesibillity modifier on the property in the class. Thx Anthony!