TcxTreeListStyles.OnGetHotTrackStyle Event

Allows you to apply different styles to individual hot-tracked nodes.

Declaration

property OnGetHotTrackStyle: TcxTreeListGetContentStyleEvent read; write;

Remarks

You can handle the OnGetHotTrackStyle event to apply different styles to hot-tracked nodes based on custom conditions.

Event Occurrence

The OnGetHotTrackStyle event occurs every time a user hot-tracks a node in a Tree List control if its OptionsBehavior.HotTrack property is set to True.

Event Parameters

You can use Sender, AColumn, and ANode parameters to identify the control that raised the OnGetHotTrackStyle event and the currently hot-tracked node. The AStyle parameter allows you to assign an existing style to the currently hot-tracked node.

Refer to the TcxTreeListGetContentStyleEvent procedural type description for detailed information on parameters accessible within OnGetHotTrackStyle and OnGetContentStyle event handlers.

Code Example: Apply Different Styles to Root and Child Nodes

The following code example applies two different styles to root and child tree list nodes:

Delphi

procedure TMyForm.cxTreeList1GetHotTrackStyle(Sender: TcxCustomTreeList; AColumn: TcxTreeListColumn;
             ANode: TcxTreeListNode; var AStyle: TcxStyle);
begin
  if ANode.Level = 0 then
    AStyle := RootHotTrackStyle;
  else
    AStyle := ItemHotTrackStyle;
end;

C++

void __fastcall TMyForm::cxTreeList1GetHotTrackStyle(TcxCustomTreeList *Sender, TcxTreeListColumn *AColumn,
             TcxTreeListNode *ANode, TcxStyle *&AStyle)
{
  if(ANode->Level == 0)
    AStyle = RootHotTrackStyle;
  else
    AStyle = ItemHotTrackStyle;
}