Archive for the ‘MVVM’ Category

Storing your Objects in a Database

I’ve just begun a series of posts and accompanying videos over at the Code Partners site on using an Object Relational Mapper in Delphi. It starts out simple but over the series I want to delve into exercising more control of how objects are loaded and stored to optimise performance and other requirements. I’m using TMS Aurelius but the concept should apply to any ORM worth its salt.

The first two posts are up, and you can start here.

MVVM and MenialTasks : Why did I use TEnumerableBindSourceAdapter instead of TListBindSourceAdapter?

In the comments¬†over on my old MVVM Resource List post¬†Peter Rosario asked a great question. A question I thought I’d covered in my video but I suspect I might have edited it out in an attempt to fit into the CodeRage time limits. So I thought I’d answer it here.

The question was about my MenialTasks sample app, and why I’d used TEnumerableBindSourceAdapter to bind my collection of TTasks to the UI, rather than the more common TListBindSourceAdapter.

TListBindSourceAdapter has a lot going for it. It comes “in the box”, would certainly have been easier, and would work just fine. Given that, why didn’t I use it? Read On…