private void load_data_2_sle_chon_vi_tri()
{
m_sle_chon_vi_tri.EditValue = null;
US_DM_CHUC_VU v_us = new US_DM_CHUC_VU();
DS_DM_CHUC_VU v_ds = new DS_DM_CHUC_VU();
v_us.FillDataset(v_ds, " where id_don_vi = " + Convert.ToDecimal(m_sle_chon_don_vi.EditValue));
m_sle_chon_vi_tri.Properties.DataSource = v_ds.Tables[0];
}