property Column.HeaderAlignment as AlignmentEnum
Specifies the alignment of the column's caption.

TypeDescription
AlignmentEnum An AlignmentEnum expression that specifies the alignment of the column's caption. 
By default, the HeaderAlignment property is LeftAlignment. Use the HeaderAlignment property to change the column's caption alignment. The column's alignment is keep once you drag or group by that column. The Alignment property specifies the alignment of the column's content ( the cells ).