Example: OnGetHotTrackStyle

• Jul 30, 2021

The following sample shows the use of the OnGetHotTrackStyle event. The event handler changes the style of a node depending on the node level.

The sample requires that an instance of the style repository is available. The repository should contain at least two styles: a style for hot-tracked root level nodes (stlHotRoot) and a style for other nodes (stlHotItem).

Delphi

procedure <Form>.<TreeList>GetHotTrackStyle(Sender: TcxCustomTreeList; AColumn: TcxTreeListColumn; ANode: TcxTreeListNode; var AStyle: TcxStyle);
begin
  if ANode.Level = 0 then
    AStyle := stlHotRoot
  else
    AStyle := stlHotItem;
end;

C++

void __fastcall <Form>::<TreeList>GetHotTrackStyle(TcxCustomTreeList *Sender, TcxTreeListColumn * AColumn, TcxTreeListNode *ANode, TcxStyle *&AStyle) {
if (ANode->Level == 0)
  AStyle = stlHotRoot;
else
  AStyle = stlHotItem;
}