private void load_data_2_sle_chon_nv()
{
m_sle_chon_nhan_vien.Properties.DataSource = load_data_2_ds_v_dm_nv().V_DM_NHAN_VIEN;
m_sle_chon_nhan_vien.Properties.ValueMember = V_DM_NHAN_VIEN.ID;
m_sle_chon_nhan_vien.Properties.DisplayMember = V_DM_NHAN_VIEN.HO_TEN;
m_sle_chon_nhan_vien.Properties.PopulateViewColumns();
m_sle_chon_nhan_vien.Properties.TextEditStyle = DevExpress.XtraEditors.Controls.TextEditStyles.Standard;
m_sle_chon_nhan_vien.Properties.BestFitMode = DevExpress.XtraEditors.Controls.BestFitMode.BestFit;
}