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2
Votes

Dragging cards to empty columns can fail

Dear Syncfusion support team,

we have found an issue with your Kanban control when "quickly" dragging cards to empty columns. We used your Overview example (https://ej2.syncfusion.com/demos/#/bootstrap5/kanban/overview.html

) to reproduce the behavior. You first have to deactivate swimlanes, as the behavior is not reproducible with active swimlanes. Then, drag all cards from some of the columns elsewhere to produce empty columns.

When you then start dragging cards to the empty columns, you will sometimes notice the placeholder not appearing. If you move the mouse slowly (i.e. the pointer crosses over the spacing between the columns), the placeholder appears, if you move it fast enough, it seems the mouseover event for the new column is not triggered. Please find attached a screencast of this behavior.

For us, this is currently a showstopper for rolling out the new kanban control.

Thanks for your help!

Cheers,
Christoph