private void btnSetPaymentDetails_Click(object sender, EventArgs e)
        {
            if (scheduleVM.ScheduleStatusID == 1)
            {
                MessageBox.Show("Termin mora biti završen da bi mogli postaviti uplatu!", "Upozorenje", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }
            frmSetPayment frm = new frmSetPayment(_scheduleID);

            frm.Show();
        }
        private void btnShowPaymentDetails_Click(object sender, EventArgs e)
        {
            frmSetPayment frm = new frmSetPayment(_scheduleID);

            frm.Show();
        }