Hi,

I have created my own Behavior class derived from the BehaviorBase. I have overrided the StartDraw method in order to have a move on click+drag of the left mouse button and a create link when the alt key is pressed. This is working fine for one node.

Now what i'd like to do, is to be able to have the same behavior when several nodes are selected.
I'd like be able to create a link from the selected nodes to a destination node, which will create, in the end, one link for each selected node to the destination node.

How can i do this?

I've remarked that my Startdraw method is not called when i have several nodes selected.

Thanks in advance for your help.
Isabelle.

Hi,

Yes, this is the problem I'm seeing.
The control starts moving the selected nodes when the mouse pointer is over one of the selected node (I'm using InvisbleMove HandlesStyles) without calling StartDraw. So I cannot initiate the link creation on the node the mouse is over.

Isabelle.

We'll have to move to the base StartDraw method the code that starts dragging the multiple selection, so you can override it. Currently it is called before StartDraw, and the latter is not called if the selection is being moved. We'll try to do that for the next release.

Stoyan

Hi Isabelle,

This version adds a virtual bool ShouldMoveSelection(Point point) method to BehaviorBase. Override it and return false if your multiple links drawing mode is enabled, and the control will call StartDraw.

https://mindfusion.eu/_beta/fcnet53.zip

Again, this won't let the user draw multiple links simultaneously, but you can create the additional links in response to LinkCreated. With some custom drawing you could also draw some lines while a link is being created, to simulate multiple links being drawn.

I hope that helps,
Stoyan