private void btnSideBar3_Click(object sender, EventArgs e)
{
LogBUL logBUL = new LogBUL();
StockBUL stockBUL = new StockBUL();
AccountBUL accountBUL = new AccountBUL();
string created_at = DateTime.Now.ToString();
logBUL.StoreLog(1, this.accountNo, created_at, 550, 4, "Vấn tin số dư");
int money = accountBUL.GetAccount(this.accountNo).Balance - 550;
stockBUL.UpdateMoney(money, this.accountNo);
(new Confirmation(this.rm, this.card, this.accountNo)).Show();
this.Hide();
myTimer.Tick += new EventHandler(TimerEventProcessor);
myTimer.Interval = 2000;
myTimer.Start();
}