public bool check_ma_tai_san_is_valid(string ip_str_ma_tai_san) { US_DM_DAT v_us_dm_dat = new US_DM_DAT(); DS_DM_DAT v_ds_dm_dat = new DS_DM_DAT(); v_us_dm_dat.FillDataset(v_ds_dm_dat, "where " + DM_DAT.MA_TAI_SAN + " = '" + ip_str_ma_tai_san + "'"); if (v_ds_dm_dat.DM_DAT.Count == 0) return true; return false; }
// done private void load_data_to_cbo_dia_chi() { if (m_cbo_don_vi_su_dung.SelectedValue == null) { m_cbo_dia_chi.DataSource = null; return; } DS_DM_DAT v_ds_dm_dat = new DS_DM_DAT(); US_DM_DAT v_us_dm_dat = new US_DM_DAT(); v_us_dm_dat.FillDataset(v_ds_dm_dat, "where " + DM_DAT.ID_DON_VI_SU_DUNG + " = " + CIPConvert.ToDecimal(m_cbo_don_vi_su_dung.SelectedValue)); m_cbo_dia_chi.DisplayMember = DM_DAT.DIA_CHI; m_cbo_dia_chi.ValueMember = DM_DAT.ID; m_cbo_dia_chi.SelectedValueChanged -= new EventHandler(m_cbo_bo_tinh_SelectedValueChanged); m_cbo_dia_chi.DataSource = v_ds_dm_dat.DM_DAT; m_cbo_don_vi_su_dung.SelectedValueChanged += new EventHandler(m_cbo_bo_tinh_SelectedValueChanged); }