BCGControlBar Pro for MFC
virtual int CBCGPProp::OnAddComboBoxItem ( int  nIndex,
const CString &  strItem,
DWORD_PTR  dwItemData 

Called by the Property Grid to add a combo box item.

nIndexA zero-based combo-box item's index.
strItemA combo-box item's name.
dwItemDataA combo-box item's user-defined data.
A zero-based index of the newly added item.

Override this method in a derived class to customize cell combo box items adding.