Hi,

I suppose you could add a ShapeNode of the appropriate shape, set its Bounds to the union of the grouped nodes' bounding rectangles, and set its Brush to a new SolidColorBrush(Color.Transparent) so that only its outline is visible.

You cannot upload images here, but can link to ones hosted on your server, or say on flickr.

Stoyan

Hi,

Have you added l_Node to the Diagram before calling ZBottom?

Stoyan

Hi,

It seems you have found a bug. The ZIndex setter does not invalidate the Z order of the WPF visual tree. Other properties do that correctly; so as a workaround you could call the SelectionOnTop setter after changing ZIndex of items to update the WPF visuals Z order:

l_Node.ZBottom();
diag.SelectionOnTop = diag.SelectionOnTop; // force Z order refresh

We'll post a fix in a few days.

Z indices always takes the values from 0 to N-1, where N is the number of items in the diagram. If you call node1.ZBottom() followed by node2.ZIndex = 0, node1.Zindex will be shifted to 1, and node2 should appear below node1.

Stoyan

Hi,

This version correctly invalidates the Z order of the WPF visual tree when you change ZIndex. That seems a very slow operation, so we have implemented the ISupportInitialize interface to avoid the big delay after each ZIndex assignment. Now if you need to set ZIndex for multiple items, do it like this, and the visual tree's Z order will be refreshed just once:

diagram.BeginInit();
for (...)
  item.ZIndex = z;
diagram.EndInit();

I hope that helps,
Stoyan