property Column.HeaderVertical as Boolean
Specifies whether the column's header is vertically displayed.

 TypeDescription 
   Boolean A boolean expression that indicates whether the column's caption is vertically printed.  
Use the HeaderVertical property to display vertically the column's caption. Use the HeaderAlignment property to align the caption in the column's header. Use the Caption property to assign a caption to a column. Use the HTMLCaption property to specify an HTML caption to a column. Use the HeaderImage property to assign an icon to a column.