Hi,

Angular Example – https://stackblitz.com/edit/github-am1v3t?file=src%2Fapp%2Fapp.component.ts

In the above example, I am trying to use dragProject property to drag project along with it’s tasks. It works as expected when the chart’s vertical scroll position is not changed.

1. Expand ‘Sub project 1’ and ‘Sub project 2’, You should be able to see ‘Task 1’ and ‘Task 2’.
2. Drag ‘Sub project 2’ to left and right. The ‘Task 2’ is dragged along with it and the ‘Project 2’ is synced correctly. (This is as expected).
3. Now scroll vertically and again perform the step 2. While dragging ‘Sub project 2’, ‘Task 2’ disappears from chart, ‘Project 2’ remains at it’s original position and a new placeholder element is shown for ‘Project 2’ without the label. There is also a drag restriction added for ‘Sub project 2’  which is not expected.
4. Scroll to top and again perform Step 2. Everything works as expected again.

Can you please help on this. I should be able to drag sub project along with it’s tasks irrespective of Chart’s vertical scroll position.