Пример #1
0
        private void button1_Click(object sender, EventArgs e)
        {
            string allowedchar = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

            if (textBox1.Text == "" || textBox2.Text == "")
            {
                MessageBox.Show("You must fill in all fields");
            }
            else if (!textBox2.Text.All(allowedchar.Contains))
            {
                MessageBox.Show("Check the password");
            }
            else
            {
                korisnik k = new korisnik();
                k.korisnickoIme = textBox1.Text;
                k.sifra         = textBox2.Text;
                DataTable dt = Base.Login(k);

                try
                {
                    if (k.proveraKorisnika())
                    {
                        if (dt.Rows.Count == 1)
                        {
                            switch (dt.Rows[0][5] as string)
                            {
                            case "A":
                            {
                                k.korisnickoIme = dt.Rows[0][4].ToString();
                                this.Hide();
                                Admin a = new Admin();
                                a.Show();
                                break;
                            }

                            case "R":
                            {
                                k.korisnickoIme = dt.Rows[0][4].ToString();
                                User u = new User();
                                u.Show();
                                break;
                            }

                            default:
                            {
                                MessageBox.Show("You entered your username or password incorrectly.");
                                break;
                            }
                            }
                        }
                        else
                        {
                            MessageBox.Show("You entered your username or password incorrectly.");
                        }
                    }
                    else
                    {
                        MessageBox.Show("There is no user with the username entered.");
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);
                }
            }
        }