tilausNappi

        private void tilaaNappi_Click(object sender, EventArgs e)
        {
            try
            {

                string maara;
                int value = (int)numericUpDown1.Value;
                maara = "" + (e95 + value);

                DialogResult result = MessageBox.Show("Oletko varma?", "Tilataan lisää", MessageBoxButtons.YesNo);

                if (result == DialogResult.Yes)
                {
                    e95 = int.Parse(maara);
                    using (StreamWriter sw = new StreamWriter(tiedostoPolku))
                    {
                        sw.WriteLine(e95);
                        sw.WriteLine(e98);
                        sw.WriteLine(diesel);

                        this.Close();
                    }
                }

            }
            catch
            {
                MessageBox.Show("Jotain meni pieleen");
            }

        }