Exemplo n.º 1
0
        private void stockToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();
            stock2 to = new stock2();

            to.Show();
        }
Exemplo n.º 2
0
        private void button1_Click(object sender, EventArgs e)  //ปุ่มlogin
        {
            MySqlConnection conn = databaseConnection();

            conn.Open();

            MySqlCommand cmd;

            cmd             = conn.CreateCommand();
            cmd.CommandText = $"SELECT * FROM user WHERE username = \"{textBox1.Text}\" AND password = \"{textBox2.Text}\"";

            MySqlDataReader row = cmd.ExecuteReader();

            if (row.HasRows)
            {
                MessageBox.Show("เข้าสู่ระบบสำเร็จ"); //กรอกข้อมูลถูกต้อง
                Program.username = textBox1.Text;
                MySqlConnection con2 = databaseConnection();
                con2.Open();
                MySqlCommand cmd2 = con2.CreateCommand();
                cmd2.CommandText = $"SELECT status FROM user WHERE username = \"{textBox1.Text}\"";
                MySqlDataReader dr = cmd2.ExecuteReader();
                if (dr.Read())
                {
                    string status = dr.GetValue(0).ToString();
                    if (status == "admin")
                    {
                        stock2 a = new stock2();
                        this.Hide();
                        a.Show();
                    }
                    else
                    {
                        Order3 a = new Order3();
                        this.Hide();
                        a.Show();
                    }
                }
                else
                {
                    MessageBox.Show("ชื่อผู้ใช้ หรือ รหัสผ่านไม่ถูกต้อง"); //กรอกข้อมูลไม่ถูกต้อง
                }
                conn.Close();
            }
        }