Hello,

We have a WPF application here, which has several views layouted by Avalon Dock framework. One of the views is based on Mindfusion 2.7.0, using a subclass of a Diagram class including a custom layout algorithm.

We found a problem when the application window is maximized when on a remote desktop or beamer operation (not on a standalone). The effect causes the bounds information being provided wrongly to the layouting algorithm (im currently setting up a remote desktop environment to debug this to find out what bounds are really given to me), and all the tooltips including the ones belonging to other views not based on mindfusion are shown in a top left corner of the screen. This does not happen if no mindfusion view is active, thus I think it is mindfusion issue.

Is it a known issue? Is there a fix for this?

Hey

For positioning: The bounds seem to be provided correctly after all, I overrode the OnRender for all my objects and the coordinates for bounds are correct. However, all ShapeNodes created programmatically are still placed in the top left corner of the WPF control (starting point seems to be -1,-1 or similar). Interestingly, it does not affect the TemplatedNodes - these are placed correct. Could it be that the combination of Mindfusion with fullscreen and some video card drivers, including remote desktop graphics driver is causing the effect?

As for tooltips, it does not show them all at the same time. It causes the placement of all tooltips in the top left corner of the main screen, meaning when I roll my mouse over a toolbar button or similar, the tooltip is not shown at the mouse position, but at the top left of the screen...

Hello,

Yes, they are placed at positions different from 0,0 (the one I use for debugging is placed for example at 138,257). Placement occurs inside of the OnRender override (before calling base.OnRender()), and is done by using Move. I tried enabling node resize and movement, but while this was giving a visible effect with the non-full-screen operation, it was not possible to resize nodes in full screen.


It cant be a snapshot, as it also happens when using a beamer on laptop's external connector.

The OnRender override belongs to the owner class, which is a subclass of a DiagramLink. I want to place several ShapeNodes around the link. I can not arrange them in constructor, as at that time, the link is not yet anchored at the ends. Maybe you can suggest a better place to do this?

Does that happen only for the nodes that are shown by the custom link? If you are adding these nodes dynamically from OnRender, that will lead to running the arrange phase too.

If you need to add or arrange nodes for links drawn interactively by the user, a suitable place to do that might be the CompleteCreate and Completemodify overrides. If you need to place them after programmatically arranging the link points, just add a new link method that arranges the nodes and call it after link's control points are set (make sure that happens outside of any OnRender too).

If you run the control's demo in that configuration, does it show the sample diagrams correctly?

If you load one of the demo files into your application using LoadFromXml, does it show any issues? If it doesn't, then the problem is caused by something in the custom link or node classes. If it does, then you should look for the problem somewhere else in the app.

You might also check if calling diagram.UpdateLayout from some button handler fixes the diagram appearance; if it does, probably the WPF arrange pass was stopped by something outside of the diagram objects.

I hope that helps,
Stoyan