private void fill_data_2_le_trang_thai_lao_dong()
{
US_CM_DM_TU_DIEN v_us = new US_CM_DM_TU_DIEN();
DS_CM_DM_TU_DIEN v_ds = new DS_CM_DM_TU_DIEN();
v_us.FillDataset(v_ds, "where ID_LOAI_TU_DIEN = " + CONST_ID_LOAI_TU_DIEN.TRANG_THAI_LAO_DONG);
m_le_trang_thai_hien_tai.Properties.DataSource = v_ds.Tables[0];
}