How can I bind key gestures in Caliburn.Micro?

Question

How can I get Caliburn.Micro to map a key gesture to an action method on my ViewModel?

For example, I want to implement a tabbed interface, and I want my ShellViewMo

Answer 1

If you marshal a command through the View to the View Model you can control the CanExecute from the View Model. I've been using this method in multiple Caliburn projects. Might not be as "slick" as using Interactivity, but CanExecute works.

In your View class, you wire the command to the View Model which is referenced in the MyView.DataContext property.

Class MyView

    Public Property RefreshCommand As _
    New RelayCommand(AddressOf Refresh,
                     Function()
                         If ViewModel Is Nothing Then
                             Return False
                         Else
                             Return ViewModel.CanRefresh
                         End If
                     End Function)

    Private Sub Refresh()
        ViewModel.Refresh()
    End Sub

    Private ReadOnly Property ViewModel As MyViewModel
        Get
            Return DirectCast(DataContext, MyViewModel)
        End Get
    End Property

End Class