I am using Material drag e drop they don't allow the mixed-orientation of the drag e drop so to use it with both directions I use this workaround.
But in the last release, they removed CdkDropList.enter method.
So now how can I achieve the same result as before?
Here the solution: https://github.com/angular/components/issues/13372#issuecomment-664067103
this is the new code from angular 9 version:
this.source._dropListRef.start();
this.placeholder._dropListRef.enter(drag._dragRef, drag.element.nativeElement.offsetLeft, drag.element.nativeElement.offsetTop);