Retrieves or sets a value that indicates the key of the column's
level. /*not supported in the lite version*/
Type
Description
Variant
A Variant expression that indicates the key of the column's level.
By default, the LevelKey property 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.
