private void set_initial_form_load()
{
switch (m_e_form_mode)
{
case DataEntryFormMode.InsertDataState:
m_dat_ngay_lap_quy.DateTime = DateTime.Now;
m_dat_thang_ap_dung_quy.DateTime = DateTime.Now;
m_dat_tu_ngay.DateTime = new DateTime(DateTime.Now.Year,1,1);
m_dat_den_ngay.DateTime = DateTime.Now;
m_sle_cach_tinh_thue.EditValue = 759;
break;
case DataEntryFormMode.UpdateDataState:
break;
default:
break;
}
}