private void Increase_Stock() { for (int i = 0; i < dataGridView_INVO_ITEMS.Rows.Count; i++) { int ID_PRD = int.Parse(dataGridView_INVO_ITEMS.Rows[i].Cells["ITEM_ID"].Value.ToString()); float PRD_QTY = float.Parse(dataGridView_INVO_ITEMS.Rows[i].Cells["Stock"].Value.ToString()); PROD.ADD_PRD_Stock(ID_PRD, PRD_QTY); } }