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Keyboard focus for ApplicationCommands (Read 1744 times)

GregC YaBB Newbies Offline I Love MindFusion! Posts: 5 Joined: Jan 16^th, 2014	Keyboard focus for ApplicationCommands Apr 25^th, 2014 at 10:21am	Print Post
	Hi, We are overriding the ApplicationCommand key bindings for such things as Cut, Copy + Paste.... CommandManager.RegisterClassCommandBinding(typeof(DiagramPage), cb); These are attached to DiagramPage. This works fine, i.e. recieves the event, after the page gets the focus when the user left clicks it. The problem is when the page first shows (by setting DiagramView.Diagram = myDiagramPage) I cannot force the KeyboardFocus on to the diagram programmatically. Any ideas how to do it ? I tried. Keyboard.Focus(_myDiagramPage); but it gets ignored. I think that MF must set the focus somehow before raising the DiagramPage.MouseDown event, as when i catch the event the DiagramPage already has the keyboard focus. Thanks Greg


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Keyboard focus for ApplicationCommands Reply #1 - Apr 25^th, 2014 at 11:20am	Print Post
	Hi, If you are using setup similar to the one shown in MultiViews sample project, try setting the focus from first LayoutUpdated event: Code bool firstRun = true; Diagram diagram; private void Window_Loaded(object sender, RoutedEventArgs e) { var view = new DiagramView(); diagram = new Diagram(); diagram.Factory.CreateShapeNode(30, 30, 60, 60).Selected = true; var window = new UI.Wpf.Window(); window.Width = 200; window.Height = 200; window.Content = view; window.Show(windowHost); view.Focusable = false; view.Diagram = diagram; Keyboard.Focus(diagram); // does not work from here LayoutUpdated += window_LayoutUpdated; } void window_LayoutUpdated(object sender, EventArgs e) { if (firstRun) { Keyboard.Focus(diagram); firstRun = false; } } It seems Keyboard.Focus does not work until the first WPF layout pass has run, and calling it from LayoutUpdated works. I hope that helps, Stoyan


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GregC YaBB Newbies Offline I Love MindFusion! Posts: 5 Joined: Jan 16^th, 2014	Re: Keyboard focus for ApplicationCommands Reply #2 - Apr 25^th, 2014 at 12:24pm	Print Post
	Thanks Stoyan, that does the trick.


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