public void signup(string a, string b, string c, Int64 d, string e)
        {
            FirstName      = a;
            LastName       = b;
            nationality    = c;
            PassportNumber = d;
            connec.Open();
            string     query = "insert into fursan values (@ppnumber , @fname , @lname , @nationality , @pass)";
            SqlCommand cmd   = new SqlCommand(query, connec);

            cmd.Parameters.AddWithValue("@ppnumber", PassportNumber);
            cmd.Parameters.AddWithValue("@fname", FirstName);
            cmd.Parameters.AddWithValue("@lname ", LastName);
            cmd.Parameters.AddWithValue("@nationality", nationality);
            cmd.Parameters.AddWithValue("pass", e);
            int x = cmd.ExecuteNonQuery();

            if (x > 0)
            {
                MessageBox.Show("Your account has been made succesfully.",
                                "Account MADE", MessageBoxButtons.OK, MessageBoxIcon.Information);
                FURSANSIGNUP f  = new FURSANSIGNUP();
                FURSAN       fs = new FURSAN();
                f.Hide();
            }
            else
            {
                MessageBox.Show("Account registration unsuccesful.", "Make Account", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            connec.Close();
        }
        private void button4_Click(object sender, EventArgs e)
        {
            this.Hide();
            FURSAN fr = new FURSAN();

            fr.Show();
        }