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Those of you who've upgraded to 3.0 may have noticed a change in the way ContextMenus work.  Since the new Behaviour API now subscribes to right mouse button clicks. those events are now considered to be handled and so any ContextMenus that may have been set don't open. 

The way to get ContextMenus working in 3.0 is to write a Behaviour that will open the menu when the right button is clicked.  We've included an example of a behaviour that will do this - it's really simple and the main methods in a WPF version of such a class are given below:

        public override void PointerPressed(IBehaviourEventSource sender, PointerEventContext context)
        {
            if (Menu != null)
            {
                sender.BehaviourCanvas.CaptureMouse();
                Menu.PlacementTarget = BehaviourCanvas;
                Menu.IsOpen = true;
            }
        }

        public override void PointerReleased(IBehaviourEventSource sender, PointerEventContext context)
        {
            if (Menu != null)
            {
                Menu.IsOpen = false;
                sender.BehaviourCanvas.ReleaseMouseCapture();
            }
        }

        protected override void Init()
        {
            BehaviourCanvas.ContextMenu = Menu;
        }

        public override void DeInit()
        {
            if (Menu != null)
            {
                Menu.IsOpen = false;
            }
        }

The only other piece of the puzzle is to make sure that this new ContextMenuBehaviour is only activated by right mouse button.  You can do that via the new BehaviourActivator property on our behaviours.  Just set that to "RightMouse" in XAML or attache a PointerButtonBehaviourActivator in code behind.

And there it is, ContextMenu support for Visiblox Charts 3.0. 

You can download source code for an example WPF application here - you'll need to drop in a Visiblox Charts dll, either purchased or from your trial to be able to compile it.  Please note this approach requires Visiblox Charts 3.0.1 or later to work correctly.