M-V-VM training day sample application and decks

M-V-VM training day sample application and decks - Click & Solve

M-V-VM training day sample application and decks - Click & Solve — Tue, 10 Feb 2009 12:40:44 GMT

PingBack from http://www.clickandsolve.com/?p=5699

re: M-V-VM training day sample application and decks

Radeldudel — Tue, 10 Feb 2009 13:57:36 GMT

Some questions (since the link to the source does not work, so I can't look for myself):

Can you use a mouse doubleclick to go from the SearchView to the Map?

How did you bind the list header click to sorting the content?

(these questions about binding events to the VM are my main problem around M-V-VM, thats why I ask).

thanks in advance,

Sam

re: M-V-VM training day sample application and decks

sazish — Tue, 10 Feb 2009 15:01:43 GMT

Code and ppt decks aren't available.

Sam

re: M-V-VM training day sample application and decks

bill44077 — Tue, 10 Feb 2009 16:23:56 GMT

Awesome - Wish I could have been there. Any plans on doing this out East?

Both the code link and ppt links are broke. Can't wait to see the material.

regards,

Bill

re: M-V-VM training day sample application and decks

huseyint — Tue, 10 Feb 2009 18:37:14 GMT

Links should be:

http://www.cookingwithxaml.com/meals/southridge/decknotes.pptx

http://www.cookingwithxaml.com/meals/southridge/southridge.zip

re: M-V-VM training day sample application and decks

jaimer — Tue, 10 Feb 2009 19:04:25 GMT

Sorry about the links.. I tested them but some how between my test and publish I made them relative...

Huseyint them right, and the actual links have been fixed..

Sorry again.. I need to stop blogging at midnight so I am awake when I hit publish ..

M-V-VM training day sample application and decks

DotNetShoutout — Wed, 11 Feb 2009 17:15:14 GMT

Thank you for submitting this cool story - Trackback from DotNetShoutout

re: M-V-VM training day sample application and decks

davidjjon77 — Fri, 13 Feb 2009 17:50:03 GMT

Thank you very much Jaime for sharing this project.

David Roh

re: M-V-VM training day sample application and decks

johnpapa — Sat, 14 Feb 2009 07:43:15 GMT

Good stuff Jamie. MVVM is a nice pattern for WPF and Silverlight that fits great with the DataContext and XAML binding techniques. I'm no pattern extremist by any means, but I like combining it with Ninject or Unity for some DI to improve testability.

Thanks for sharing!

re: M-V-VM training day sample application and decks

bill44077 — Tue, 03 Mar 2009 19:20:36 GMT

Hi Jamie,

I've been working my way through the Southridge sample (both the original from codeplex/PDC2008 and your current example here). There are many differences and I'm having trouble making the leap. In the Southridge Lab from PDC there is a section on the Ribbon. They create the RibbonCommand_CanExecute and the RibbonCommand_Executed method - but unfortunately they never get set up to do anything. The CanExecute just sets "true" and the Executed pops up a messagebox. I'm really having trouble figuring out how to connect these methods up to my ICommand methods. I'm sure that I'm just missing something really simple but I can't figure it out.

In this example you changed the way that was set up for the Commands and you added the NonRoutedRibbonCommandDelegator. Then in your RibbonCommands in the xaml you use the view:NonRoutedRibbonCommandDelegator. You also use the DelegateCommand here instead of the more simple RelayCommand. If I could find one example of how to hook up the RibbonCommand with the ViewModel I think that I would be on my way. I just can't figure out how to get from the Executed to the ICommand for each one.

Thanks in advance and I really appreciate all the work you put into your blogs! I'm hoping you guys will make a trip out to the Midwest or East on your tour so we from Cleveland can come see the real presentation. It sounds awesome!

regards,

Bill

re: M-V-VM training day sample application and decks

jaimer — Wed, 04 Mar 2009 04:44:22 GMT

Hi bill.

Are you referrring to the codeplex HOLs for southridge? You are right that it is hugely different codebase.. The labs are being re-written, but we learned not to release them too early again so that will take a full 3 to 4 weeks :(

Regarding RibbonCommand and mvvm.

The way I chose to do it, as you have seen on the code is through NonRoutedRibbonCommandDelegator - that is the short name, it was even longer once before--.

I do not quite recommend you do it, but if you do not like NRRCD the way the design is in the CTP ribbon, you would expose a Command of type RibbonCommand in your view model.. and you could use that.. I do not like that cause those are routedcommands, and also your command would have more view state, but it should work..

With regards to RelayCommand and DelegateCommand; it is the same thing .. DelegateCommand is what we called it in Prism and name got stuck on my head..

hth,

re: M-V-VM training day sample application and decks

bill44077 — Wed, 04 Mar 2009 20:50:01 GMT

Hi Jamie,

Yes - the HOL is what I was referring to and unfortunately that doesn't use the ViewModel so everything is in the code behind.

I appreciate the info. I'm close but I'm still missing something really simple. Probably one line of code somewhere :)

I get my RibbonControl in my app, but the ICommands are never getting called so all my ribbon buttons are disabled I've set breakpoints in the and don't hit them.

Here's what I have:

[mainwindow.xaml]

<r:RibbonWindow.Resources>

<local:NonRoutedRibbonCommandDelegator

x:Key="CopyCommand"

LabelTitle="Copy Project"

LabelDescription="Copy a project"

ToolTipDescription="Copy Project from your disk."

ToolTipTitle="Copy Project"

SmallImageSource="Images/copy.png"

LargeImageSource="Images/copy.png" />

...

[mainwindow.xaml.cs]

mainwindow()

{

this.DataContext = new MainWindowViewModel();

InitializeComponent();

...

[mainwindowviewmodel.cs]

...

private ICommand _copyCommand;

...

public ICommand CopyCommand

{

get

{

if (_copyCommand == null)

{

_copyCommand = new RelayCommand(CopyExecute, CanCopyExecute);

}

return _copyCommand;

}

...

private bool CanCopyExecute(object param)

{

return true;

}

private void CopyExecute(object param)

{

}

...

I'm using your NRRCD class as well.

I've noticed that when I set a breakpoint in your Southridge sample code that it hits the getter for the NewProfile ICommand, for example, which is exactly what I would expect. The call stack window shows [External Code] which I am suspecting is the RibbonControlLibrary dll?

Thanks in advance for anything you might see here that I am forgetting. I'm sure it going to be one of those things that makes me go "Duh!"

regards,

Bill

re: M-V-VM training day sample application and decks

bill44077 — Wed, 04 Mar 2009 20:52:52 GMT

Hi Jamie - I meant to add the ribbonbutton to what I have in the mainwindow.xaml

<r:RibbonButton Command="{StaticResource CopyCommand}" />

thanks!

Bill

re: M-V-VM training day sample application and decks

bill44077 — Wed, 04 Mar 2009 23:23:50 GMT

Hi Jamie,

I found my "Duh!". Turns out I didn't pay enough attention to your xaml and I missed a very important line:

ActualCommand="{Binding Source={StaticResource spy}, Path=DataContext.OpenCommand}"/>

That's the hook-up I was missing.

thanks again!

Bill