prevent draw link from down to top tasks

Gantt
#1

Hi,

I need to prevent draw link from down to top links.
For example,
There are 2 tasks A and B
Here we can draw link from A to B (top to down)
I need to prevent draw link from B to A (down to top)
Is it possible? Kindly help me :slight_smile:

#2

Hi,
you can use this API event to inspect link object before allowing its creation docs.dhtmlx.com/gantt/api__gantt … event.html . Returning true from handler should allow link creation, and false should block it.