int currentMonth = (int)(nudFlowMonth1.Value) % 100;
            int currentYear = (int)(nudFlowMonth1.Value) / 100;
            if (currentMonth > 12)
            {
                currentMonth = 1;
                currentYear++;
                nudFlowMonth1.Value = currentYear * 100 + currentMonth;
            }
            if (currentMonth < 1)
            {
                currentMonth = 12;
                currentYear--;
                nudFlowMonth1.Value = currentYear * 100 + currentMonth;
            }