The optional column header is available for single- and multi-column trees, with labeled buttons or just titles (see Headers.Appearance). Each header or button label may be left or right adjusted or centered within the column boundaries (see Header.TextHAlign and Header.TextVAlign).  Column headers can contain graphics (see Header.Image.Picture). Each column header can contain single or multiple lines of text (see Header.Text and Headers.Multiline) and a graphic.

The built-in column headers support text and one graphic for each column.  All graphics must be the same height and width for all columns.

If a user clicks on a column header, the application receives an ItemClick or ItemDblClick event with an AreaType of constSftTreeColumnHeader.

Only one column header button can be in the pressed position at any one time (see Headers.Pressed).

Tree Components