Closing. Yes it
I like the idea of MVVM, but really struggles with the hoop required for really basic things like getting a value from a modal dialog or closing a window. I mean...
App.xaml
defines StartupUri=MainWindow.xaml
.
MainWindow.xaml
defines DataContext=MainWindowViewModel
.
Like MVVM, the View knows about the ViewModel, but NOT the other way around.
I can't seem to find a (normal? Logical? Simple?) Way to intercept the close event. I can use smart blocks of code like MVVMLight .. but I always get either handling the event (messy) or not being able to completely stop the closure or skip it.
I refuse to believe it is so difficult - it must be I am falling into another false lie. Please put me straight!
Thanks again for your time and patience - it is really appreciated.
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This is easily handled through attached properties or behavior. I wrote a sample in the Expression gallery that shows how you can use a Behavior to bind this processing to a command in your virtual machine without using code.
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