As the mouse cursor is positioned above any cell of the tree control, the cell in the hierarchy column can be shown underlined, highlighted or both. This helps users easily identify above which item the mouse cursor is located in a multi-column tree control.

Flyby highlighting can be controlled using the FlybyHighlight, FlybyHighlightUnderline, Headers.FlybyHighlight, Headers.FlybyHighlightUnderline, Footers.FlybyHighlight, Footers.FlybyHighlightUnderline, RowHeaders.FlybyHighlight and RowHeaders.FlybyHighlightUnderline properties.