private void load_data_2_cbo()
{
m_us_ht_user_group.FillDataset(m_ds_ht_user_group);
m_cbo_user_group.DataSource = m_ds_ht_user_group.Tables[0];
m_cbo_user_group.DisplayMember = HT_USER_GROUP.USER_GROUP_NAME;
m_cbo_user_group.ValueMember = HT_USER_GROUP.ID;
m_bool_load_data_complete = true;
}