private void set_init_form_load()
{
//this.cM_DM_TU_DIENTableAdapter.Fill(this.dVMDDataSet3.CM_DM_TU_DIEN);
m_txt_tuoi_nv.Enabled = false;
tinh_tuoi_nhan_vien(m_dat_ngay_sinh.DateTime.Date);
fill_combobox_gioi_tinh();
fill_combobox_hon_nhan();
load_data_2_sle_trinh_do();
}