Retrieves or sets a value that indicates the key of the column's level.
Type
Description
Variant
A Variant expression that indicates the key of the column's level.
By default, the LevelKey is empty. The control's header
displays multiple levels if there are two or more neighbor columns with the
same non empty level key. The HeaderHeight
property specifies the height of one level when multiple levels header is on.
Use the BackColorLevelHeader
property to specify the control's level header area. The BackColorHeader
property specifies the background color for column's captions. Use
the FormatLevel property to display multiple levels in the column's header.
