private void BackButton_Click(object sender, EventArgs e)
{
LibraryHall hall = new LibraryHall();
this.Hide();
hall.ShowDialog();
this.Close();
}
private void LoginButton_Click(object sender, EventArgs e)
{
string Username = UsernameTb.Text;
string Password = PasswordTb.Text;
customer = bll.Verify_Login(Username, Password);
if (customer != null)
{
LibraryHall hall = new LibraryHall();
this.Hide();
hall.ShowDialog();
this.Close();
}
else
{
MessageBox.Show("Username or password is wrong.");
}
}