Comments on: Creating a File Explorer in WPF using MVC+M

By: Christian

Christian — Tue, 03 Nov 2009 20:57:03 +0000

Looks like an implementation of Cocoa’s NSNotificationCenter to me. I did something similar in my WinForms days before I was made redundant.

By: Edwin Ames

Edwin Ames — Wed, 14 Oct 2009 15:34:49 +0000

Fair enough. Less concerned with warranties than any licensing issues. The code itself looks very straight-forward.

Using your code saves me the hassle of a rewrite.

Thanks!

By: marlongrech

marlongrech — Wed, 14 Oct 2009 12:33:15 +0000

All posting is provided “AS IS” with no warranties, and confers no rights.

so yea go ahead use it

By: Edwin Ames

Edwin Ames — Tue, 13 Oct 2009 15:37:50 +0000

Hi Marlon,
Nice idea, clean implementation.
Any licensing issues for use in commercial software?

Don’t see any info on your website.

Thanks!

By: Daniel

Daniel — Sun, 13 Sep 2009 16:41:42 +0000

“are you summerizing my article or is this some kind of question??”

Neither. It’s a remark about an inaccuracy in your article.

Best, Daniel

By: Marlon Grech

Marlon Grech — Sun, 13 Sep 2009 16:37:54 +0000

are you summerizing my article or is this some kind of question??

By: Daniel

Daniel — Sun, 13 Sep 2009 16:32:46 +0000

“So for the TreeView I used the Flyweight Design Pattern. … to summarize, each node loads a dummy child so that the user can expand the items. Once an item is expanded the TreeView controller loads the child directories of the directory being expanded.”

That is not what the FlyWeight Design Pattern does. This is “lazy-loading” or “on-demand-loading”.

A correct example of FlyWeight can be found in DOM libraries, with the implementation of namespaces (Dom4J comes to mind, but there are plenty of other examples where single instances are shared amongst several “hosts”).

Cheers, Dan

By: Article revisited: MVVM + M (implementing a Fly Weight TreeView) « C# Disciples

Sun, 13 Sep 2009 09:27:30 +0000

[...] I was preparing for a Demo that I will be doing in Poland and I thought to revisit this article and refactor it with the new methods that I discovered over the last [...]

By: Marlon Grech

Marlon Grech — Fri, 03 Apr 2009 14:11:00 +0000

Yea that is one this I will be addressing shortly…

Thanks for the comments

By: Cyril

Cyril — Fri, 03 Apr 2009 13:54:10 +0000

Hello there !

I found your post quite recently, and this pattern is really interesting !

Anyway, I was wondering : wouldn’t it be good to solve the memory leak issue using weak references in your Mediator ? This way, you won’t risk referencing an unused controller and let the garbage collector do its job !
I don’t master the reference part, so I’d like to have your feedback on this please ?

Keep on blogging, great articles in here !

Best regards