private void buyItemsToolStripMenuItem_Click(object sender, EventArgs e)
        {
            frmBuyItem frmBuy = new frmBuyItem();

            frmBuy.ShowDialog();
        }
        private void btn_BuyItems_Click(object sender, EventArgs e)
        {
            frmBuyItem frmBuy = new frmBuyItem();

            frmBuy.ShowDialog();
        }