Пример #1
0
        private void button4_Click(object sender, EventArgs e)
        {
            this.Hide();
            SellStock sellstock = SellStock.getInstance();

            sellstock.Show();
        }
Пример #2
0
 public static SellStock getInstance()
 {
     if (sellstock == null)
     {
         sellstock = new SellStock();
     }
     return(sellstock);
 }