private void annualHbAdd_Click_1(object sender, EventArgs e)
        {
            var editHardBill = new EditHardBillForm(null, _year);

            editHardBill.NewHardBillAdded += NewAnnualHardBill_Added;
            editHardBill.Show();
        }
        private void annualHbEdit_Click_1(object sender, EventArgs e)
        {
            string hardBill = hardBillsLv.SelectedItems[0].SubItems[0].Text;

            var editHardBill = new EditHardBillForm(_year.GetHardBill(hardBill), _year);

            editHardBill.NewHardBillAdded += RefreshPage_Handler;
            editHardBill.ShowDialog();
        }