property Tree.PictureDisplayLevelHeader as PictureDisplayEnum
Retrieves or sets a value that indicates the way how the graphic is displayed on the control's header background.

TypeDescription
PictureDisplayEnum A PictureDisplayEnum expression that indicates the way how the picture is displayed on the control's header.
Use the PictureDisplayLevelHeader property to arrange the picture on the control's multiple levels header bar. Use the PictureLevelHeader property to load a picture on the control's header bar when it displays multiple levels. The control's header bar displays multiple levels if there are two or more neighbor columns with the same non empty level key. Use the LevelKey property to specify the control's level key.