private void BtnAdd_Click(object sender, EventArgs e)
        {
            FormData show = new FormData();

            show.ShowDialog();
        }
        public void DgvResults_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            string type = DGVResults.Rows[e.RowIndex].Cells[1].Value.ToString();

            if (type == "Food")
            {
                Item   nItem  = new Item();
                string itemID = DGVResults.Rows[e.RowIndex].Cells[0].Value.ToString();
                nItem.Brand  = DGVResults.Rows[e.RowIndex].Cells[2].Value.ToString();
                nItem.Name   = DGVResults.Rows[e.RowIndex].Cells[3].Value.ToString();
                nItem.Stock  = DGVResults.Rows[e.RowIndex].Cells[6].Value.ToString();
                nItem.Price  = DGVResults.Rows[e.RowIndex].Cells[8].Value.ToString();
                nItem.Markup = DGVResults.Rows[e.RowIndex].Cells[9].Value.ToString();
                nItem.Profit = DGVResults.Rows[e.RowIndex].Cells[10].Value.ToString();
                nItem.Cost   = DGVResults.Rows[e.RowIndex].Cells[11].Value.ToString();
                FormData show = new FormData(type, nItem, itemID);
                show.ShowDialog();
            }
            else if (type == "Beer")
            {
                Beer   nItem  = new Beer();
                string itemID = DGVResults.Rows[e.RowIndex].Cells[0].Value.ToString();
                nItem.Brand  = DGVResults.Rows[e.RowIndex].Cells[2].Value.ToString();
                nItem.Name   = DGVResults.Rows[e.RowIndex].Cells[3].Value.ToString();
                nItem.Style  = DGVResults.Rows[e.RowIndex].Cells[4].Value.ToString();
                nItem.Season = DGVResults.Rows[e.RowIndex].Cells[5].Value.ToString();
                nItem.Stock  = DGVResults.Rows[e.RowIndex].Cells[6].Value.ToString();
                nItem.Size   = DGVResults.Rows[e.RowIndex].Cells[7].Value.ToString();
                nItem.Price  = DGVResults.Rows[e.RowIndex].Cells[8].Value.ToString();
                nItem.Markup = DGVResults.Rows[e.RowIndex].Cells[9].Value.ToString();
                nItem.Profit = DGVResults.Rows[e.RowIndex].Cells[10].Value.ToString();
                nItem.Cost   = DGVResults.Rows[e.RowIndex].Cells[11].Value.ToString();
                FormData show = new FormData(type, nItem, itemID);
                show.ShowDialog();
            }
            else if (type == "Liquor")
            {
                Liquor nItem  = new Liquor();
                string itemID = DGVResults.Rows[e.RowIndex].Cells[0].Value.ToString();
                nItem.Brand  = DGVResults.Rows[e.RowIndex].Cells[2].Value.ToString();
                nItem.Name   = DGVResults.Rows[e.RowIndex].Cells[3].Value.ToString();
                nItem.Style  = DGVResults.Rows[e.RowIndex].Cells[4].Value.ToString();
                nItem.Stock  = DGVResults.Rows[e.RowIndex].Cells[6].Value.ToString();
                nItem.Size   = DGVResults.Rows[e.RowIndex].Cells[7].Value.ToString();
                nItem.Price  = DGVResults.Rows[e.RowIndex].Cells[8].Value.ToString();
                nItem.Markup = DGVResults.Rows[e.RowIndex].Cells[9].Value.ToString();
                nItem.Profit = DGVResults.Rows[e.RowIndex].Cells[10].Value.ToString();
                nItem.Cost   = DGVResults.Rows[e.RowIndex].Cells[11].Value.ToString();
                FormData show = new FormData(type, nItem, itemID);
                show.ShowDialog();
            }
            else
            {
                Wine   nItem  = new Wine();
                string itemID = DGVResults.Rows[e.RowIndex].Cells[0].Value.ToString();
                nItem.Brand  = DGVResults.Rows[e.RowIndex].Cells[2].Value.ToString();
                nItem.Name   = DGVResults.Rows[e.RowIndex].Cells[3].Value.ToString();
                nItem.Style  = DGVResults.Rows[e.RowIndex].Cells[4].Value.ToString();
                nItem.Stock  = DGVResults.Rows[e.RowIndex].Cells[6].Value.ToString();
                nItem.Size   = DGVResults.Rows[e.RowIndex].Cells[7].Value.ToString();
                nItem.Price  = DGVResults.Rows[e.RowIndex].Cells[8].Value.ToString();
                nItem.Markup = DGVResults.Rows[e.RowIndex].Cells[9].Value.ToString();
                nItem.Profit = DGVResults.Rows[e.RowIndex].Cells[10].Value.ToString();
                nItem.Cost   = DGVResults.Rows[e.RowIndex].Cells[11].Value.ToString();
                FormData show = new FormData(type, nItem, itemID);
                show.ShowDialog();
            }

            DGVResults.DataSource = null;
        }