private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            FileInfo file = new FileInfo(Application.StartupPath + "Settings.txt");

            //Не даємо закрити програму
            if (!exit_application)
            {
                e.Cancel = true;
                this.Hide();
                notifyIcon1.Visible = true;
                this.ShowInTaskbar  = false;
                if (file.Exists == false)
                {
                    notifyIcon1.BalloonTipText = "Wprowadź swój dochód!";
                    notifyIcon1.ShowBalloonTip(10000);
                }
                else
                {
                    notifyIcon1.BalloonTipText = "Budżet na dziś: " + Math.Round(
                        (GlobalMetod.Is_Money(income, residence, other_expenses, spent)
                         / GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value)), 2);
                    notifyIcon1.ShowBalloonTip(10000);
                }
            }
            //Ну ладно, нехай вже закривається
            else
            {
                e.Cancel = false;
            }
        }
        public void FormUpdate()
        {
            double ismoney = GlobalMetod.Is_Money(income, residence, other_expenses, spent);

            label3.Text = "Budżet na dziś: " + Math.Round(
                (ismoney / GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value)), 2);
            label2.Text = "Pozostało pieniędzy: " + ismoney;
        }
        private void button1_Click(object sender, EventArgs e)
        {
            FileInfo file = new FileInfo(Application.StartupPath + "Settings.txt");

            if (StartData.Value < FinishData.Value)
            {
                if (IncomeTextBox.Text != "")
                {
                    if (SaveChangeButton.Text == "Zmienić")
                    {
                        TextBox_True_False(false);
                    }
                    else
                    {
                        //Запис налаштувань в файл
                        StreamWriter write_setting = file.CreateText();
                        //Дописуємо інфу в файл
                        write_setting.WriteLine(StartData.Value);
                        write_setting.WriteLine(FinishData.Value);
                        write_setting.WriteLine(IncomeTextBox.Text);
                        write_setting.WriteLine(ResidenceTextBox.Text);
                        write_setting.WriteLine(OtherExpensesTextBox.Text);
                        // Закриваємо файл
                        write_setting.Close();


                        income = Convert.ToDouble(IncomeTextBox.Text);
                        if (ResidenceTextBox.Text != "")
                        {
                            residence = Convert.ToDouble(ResidenceTextBox.Text);
                        }
                        if (OtherExpensesTextBox.Text != "")
                        {
                            other_expenses = Convert.ToDouble(OtherExpensesTextBox.Text);
                        }

                        TextBox_True_False(true);

                        notifyIcon1.BalloonTipText = "Budżet na jutro: " + Math.Round(
                            (GlobalMetod.Is_Money(income, residence, other_expenses, spent)
                             / GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value)), 2);

                        GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value);
                        FormUpdate();
                    }
                }
                else
                {
                    MessageBox.Show("Wprowadź swój dochód!", "Error");
                }
            }
            else
            {
                MessageBox.Show("Sprawdź datę!", "Error");
            }
        }
        public void FileExistTrueFalse()
        {
            FileInfo file = new FileInfo(Application.StartupPath + "Settings.txt");

            if (file.Exists)
            {
                //Зчитування налаштувань з файлу
                StreamReader read_setting = new StreamReader(Application.StartupPath + "Settings.txt");
                StartData.Text            = read_setting.ReadLine();
                FinishData.Text           = read_setting.ReadLine();
                IncomeTextBox.Text        = read_setting.ReadLine();
                ResidenceTextBox.Text     = read_setting.ReadLine();
                OtherExpensesTextBox.Text = read_setting.ReadLine();
                income = Convert.ToDouble(IncomeTextBox.Text);
                if (ResidenceTextBox.Text != "")
                {
                    residence = Convert.ToDouble(ResidenceTextBox.Text);
                }
                if (OtherExpensesTextBox.Text != "")
                {
                    other_expenses = Convert.ToDouble(OtherExpensesTextBox.Text);
                }

                TextBox_True_False(true);

                while (!read_setting.EndOfStream)
                {
                    spent = Convert.ToDouble(read_setting.ReadLine());
                }
                read_setting.Close();

                GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value);
                FormUpdate();

                notifyIcon1.BalloonTipText = "Budżet na dziś: " + Math.Round(
                    (GlobalMetod.Is_Money(income, residence, other_expenses, spent)
                     / GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value)), 2);
                notifyIcon1.ShowBalloonTip(10000);
            }
            else
            {
                tabControl1.SelectTab(InputDataPage);
                //При старті програми, якщо немає збережених налаштувань,
                //то буде братися поточний місяць
                StartData.Value  = new DateTime(year_now, month_now, 01);
                FinishData.Value = new DateTime(year_now, month_now,
                                                DateTime.DaysInMonth(year_now, month_now));
                notifyIcon1.BalloonTipText = "Wprowadź swój dochód!";
                notifyIcon1.ShowBalloonTip(10000);
            }
        }
        public void FormHide()
        {
            FileInfo file = new FileInfo(Application.StartupPath + "Settings.txt");

            notifyIcon1.Visible = true;
            this.ShowInTaskbar  = false;
            if (file.Exists == false)
            {
                notifyIcon1.BalloonTipText = "Wprowadź swój dochód!";
                notifyIcon1.ShowBalloonTip(10000);
            }
            else
            {
                notifyIcon1.BalloonTipText = "Budżet na dziś: " + Math.Round(
                    (GlobalMetod.Is_Money(income, residence, other_expenses, spent)
                     / GlobalMetod.NumberOfDays(StartData.Value, FinishData.Value)), 2);
                notifyIcon1.ShowBalloonTip(10000);
            }
        }