Re: Extending System.Drawing.Rectangle...

The problem would be of course that existing classes that accept a
Rectangle wouldn't work with your new class.

Since you don't mention adding new fields, just new members/function, I
assume you want to add methods to manipulate existing data? 

That being the case, how about creating a class called RectangleHelper
which has static methods that manipulate a passed in rectangle? It would
be fully under your control and no problem with interaction with
existing framework classes.

Cheers
Simon
 

> -----Original Message-----
> From: Discussion forum for developers using Windows Forms to 
> build apps and controls 
> [mailto:[email protected]] On Behalf Of 
> Gyorgy Bozoki
> Sent: 18 April 2007 05:24
> To: [email protected]
> Subject: [DOTNET-WINFORMS] Extending System.Drawing.Rectangle...
> 
> Hi all,
> 
> I have a question about extending structs: I'd like extend
> System.Drawing.Rectangle such that it keeps all its existing 
> functionality
> and a set of new public members can be called. Since Rectangle is a
> structure, it's sealed and cannot be derived from, so that route is
> obviously out.
> 
> I could easily create a simple new class that would have all the
> functionality of Rectangle and the extra functions that I 
> want to add, but I
> was wondering if doing this to Rectangle itself would even be 
> technically
> possible (for example during run time, if necessary.)
> 
> Thanks,
> Gyorgy Bozoki
>