这是在TreeView中的拖放:
procedure TForm1.TreeView1DragDrop(Sender, Source: TObject; X, Y: Integer);
begin
if (sender as ttreeview) = (source as ttreeview) then
if (sender as ttreeview).DropTarget<>(source as TTreeView).Selected then
(source as TTreeView).Selected.MoveTo((sender as ttreeview).DropTarget,naAddChild);
end;
procedure TForm1.TreeView1EndDrag(Sender, Target: TObject; X, Y: Integer);
begin
ShowMessage((Sender as TTreeView).Selected.Text);
if (Sender as TTreeView).DropTarget<>nil then
ShowMessage((Sender as TTreeView).DropTarget.Text);
end;
procedure TForm1.TreeView1DragDrop(Sender, Source: TObject; X, Y: Integer);
begin
if (sender as ttreeview) = (source as ttreeview) then
if (sender as ttreeview).DropTarget<>(source as TTreeView).Selected then
(source as TTreeView).Selected.MoveTo((sender as ttreeview).DropTarget,naAddChild);
end;
procedure TForm1.TreeView1EndDrag(Sender, Target: TObject; X, Y: Integer);
begin
ShowMessage((Sender as TTreeView).Selected.Text);
if (Sender as TTreeView).DropTarget<>nil then
ShowMessage((Sender as TTreeView).DropTarget.Text);
end;
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