private void metroButton2_Click(object sender, EventArgs e)
        {
            this.Hide();
            Menuregistratura f1 = new Menuregistratura();

            f1.ShowDialog();
            this.Close();
        }
        private void metroButton1_Click(object sender, EventArgs e)
        {
            object dolj;
            int    p;
            string conn       = "server=80.87.192.168;port=3306;user=phpmyadmin;database=hospital;password=XGScapxERn0Z5268;";
            string login      = metroTextBox1.Text;
            string password   = metroTextBox2.Text;
            string sqlcommand = $"SELECT * FROM doctors WHERE login ='******' and password = '******'";

            using (MySqlConnection connection = new MySqlConnection(conn))
            {
                connection.Open();
                MySqlCommand    logins_avtoriz = new MySqlCommand(sqlcommand, connection);
                MySqlDataReader reader         = logins_avtoriz.ExecuteReader();
                if (reader.HasRows)
                {
                    while (reader.Read())
                    {
                        dolj = reader.GetValue(6);
                        p    = Convert.ToInt32(dolj);
                        if (p == 8)
                        {
                            this.Hide();
                            Menuregistratura f1 = new Menuregistratura();
                            f1.ShowDialog();
                            this.Close();
                        }
                        if (p == 9)
                        {
                            this.Hide();
                            асписание расписание = new  асписание();
                            расписание.ShowDialog();
                            this.Close();
                        }
                        if (p == 6)
                        {
                            Redras redras = new Redras();
                            redras.ShowDialog();
                            this.Close();
                        }
                    }
                }
            }
        }