BCGControlBar Pro for MFC
BOOL CBCGPGridRow::InsertSubItem ( CBCGPGridRow pItem,
CBCGPGridRow pInsertAfterItem,
BOOL  bRedraw 
)

Inserts a sub-item to the specified position to the row.

Parameters
pItemPoints to the sub-item to insert.
pInsertAfterItempItem is placed after pInsertAfterItem.
bRedrawIf TRUE, the grid control will be redrawn.
Returns
TRUE if it succeeds, FALSE if it fails.