Question

I need to add a custom property to the Rectangle class. I tried to subclass the Rectangle class but it didn’t work. Is there a way to do that. Thanks

Answer 1

You can’t inherit from System.Drawing.Rectangle, because it’s not a class, it’s a struct. What you can do is to create your own class (or struct) that wraps Rectangle, something like:

class MyRectangle
{
    public Rectangle ActualRectangle { get; set; }
    public SomeType AdditionalProperty { get; set; }
}

Or you could hide the Rectangle and provide methods and properties that mirror those of Rectangle that call them.