API:FMX.TreeView.TTreeView.OnDragChange
Delphi
property OnDragChange: TOnTreeViewDragChange read FOnDragChange write FOnDragChange;
C++
__property OnDragChange;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| event | published | FMX.TreeView.pas FMX.TreeView.hpp |
FMX.TreeView | TTreeView |
Description
Occurs within a drag-and-drop operation and specifies whether the object being dragged is allowed to be dropped in this tree view.
FMX.TreeView.TTreeView.OnDragChange inherits from FMX.TreeView.TCustomTreeView.OnDragChange. All content below this line refers to FMX.TreeView.TCustomTreeView.OnDragChange.
Occurs within a drag-and-drop operation and specifies whether the object being dragged is allowed to be dropped in this tree view.
Write an OnDragChange event handler to take specific action to determine whether the object being dragged can be dropped in this tree view.
OnDragChange is an event handler of type TOnTreeViewDragChange.