// special case of SetItemCount(0)
void Clear() { m_itemsSel.Clear(); m_count = 0; m_defaultState = false; }
// must be called when a new item is inserted/added
// special case of SetItemCount(0)
void Clear() { m_itemsSel.Clear(); m_count = 0; m_defaultState = false; }
// must be called when a new item is inserted/added