private void viewButton_Click(object sender, EventArgs e)
        {
            IndividualProductScreen individualProductScreen = new IndividualProductScreen();

            this.Hide();
            individualProductScreen.Show();
        }
        private void viewButton_Click_1(object sender, EventArgs e)
        {
            IndividualProductScreen individualProductScreen = new IndividualProductScreen();

            //saves selected inventory item to Program.thisInventoryItem
            Program.thisInventoryItem = viewInventoryItem();

            individualProductScreen.Show(this);
            this.Hide();
        }