WPF Patterns
If you're doing WPF development, you really need to check out Dan Crevier's series on DataModel-View-ViewModel. Right now there is no easy way to read through all his posts on the subject without navigating through them using the calendar control on his blog. So for my own reference (and for yours as well) here is the list of links in the series:
- DataModel-View-ViewModel pattern: 1
- DataModel-View-ViewModel pattern: 2
- DM-V-VM part 3: A sample DataModel
- DM-V-VM part 4: Unit testing the DataModel
- DM-V-VM part 5: Commands
- DM-V-VM part 6: Revisiting the data model
- DM-M-VM part 7: Encapsulating commands*
- DM-M-VM part 8: View Models*
In addition to Dan's work, John Gossman's work on the Model-View-ViewModel pattern which is pretty similar and is also important when it comes to understanding how to design a WPF application. He has several posts on this pattern which I've collected below:
I think they are both saying pretty much the same thing. From my limited experience with designing WPF application I'd say what they are saying is correct. You really do need the kind of seperation they are talking about to make your WPF app work well. If you hard-code the click event in the XAML code-behind, how do you extend that to the context menu, the short-cut key, etc. without making things tightly coupled?
I'm currently working on updating my Contacts Sample to be more in line with DM-V-VM and I'll be adding a few more posts to the series as soon as I get it working. In the meantime, if you want to get a good education in WPF patterns that work, read through the links above.
* I'm pretty sure the title has a typo, these are still talking about DM-V-VM.
Technorati Tags: WPF