protected void m_cmd_xuat_excel_Click(object sender, EventArgs e)
    {
        try
        {

            if (!check_validate_data_is_ok()) return;
            string v_str_user_name = Person.get_user_name();
            if (v_str_user_name.Equals(null)) return;
            US_V_DM_DAT_HISTORY v_us_v_dm_dat_history = new US_V_DM_DAT_HISTORY();
            DS_V_DM_DAT_HISTORY v_ds_v_dm_dat_history = new DS_V_DM_DAT_HISTORY();
            m_grv_dat_history.AllowPaging = false;
            v_us_v_dm_dat_history.FillDatasetLoaiHinh(
                CIPConvert.ToDecimal(m_cbo_bo_tinh.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_don_vi_chu_quan.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_don_vi_su_dung_tai_san.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_dia_chi.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_trang_thai.SelectedValue)
                , m_cbo_loai_hinh_don_vi.SelectedValue
                , v_str_user_name
                , CIPConvert.ToDatetime(m_txt_tu_ngay.Text)
                , CIPConvert.ToDatetime(m_txt_den_ngay.Text)
                , m_txt_tim_kiem.Text
                , v_ds_v_dm_dat_history
                );
            m_grv_dat_history.DataSource = v_ds_v_dm_dat_history.V_DM_DAT_HISTORY;
            Thread.Sleep(1000);
            m_grv_dat_history.DataBind();

            WinformReport.export_gridview_2_excel(
                m_grv_dat_history
                , "BaoCaoThayDoiThongTinDat.xls"
                );
        }

        catch (Exception v_e)
        {
            CSystemLog_301.ExceptionHandle(this, v_e);
        }
    }
    protected void m_cmd_loc_du_lieu_Click(object sender, EventArgs e)
    {
        try
        {

            if (!check_validate_data_is_ok()) return;
            string v_str_user_name = Person.get_user_name();
            if (v_str_user_name.Equals(null)) return;
            US_V_DM_DAT_HISTORY v_us_v_dm_dat_history = new US_V_DM_DAT_HISTORY();
            DS_V_DM_DAT_HISTORY v_ds_v_dm_dat_history = new DS_V_DM_DAT_HISTORY();
            v_us_v_dm_dat_history.FillDatasetLoaiHinh(
                CIPConvert.ToDecimal(m_cbo_bo_tinh.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_don_vi_chu_quan.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_don_vi_su_dung_tai_san.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_dia_chi.SelectedValue)
                , CIPConvert.ToDecimal(m_cbo_trang_thai.SelectedValue)
                , m_cbo_loai_hinh_don_vi.SelectedValue
                , v_str_user_name
                , m_dat_tu_ngay.SelectedDate
                , m_dat_den_ngay.SelectedDate
                , m_txt_tim_kiem.Text
                , v_ds_v_dm_dat_history
                );
            m_grv_dat_history.DataSource = v_ds_v_dm_dat_history.V_DM_DAT_HISTORY;
            Thread.Sleep(1000);
            m_lbl_title.Text = "THÔNG TIN THAY ĐỔI";
            string v_str_thong_tin = " (Có " + v_ds_v_dm_dat_history.V_DM_DAT_HISTORY.Rows.Count + " bản ghi)";
            m_lbl_title.Text += v_str_thong_tin;
            m_grv_dat_history.DataBind();
        }
        catch (System.Exception v_e)
        {
            CSystemLog_301.ExceptionHandle(this, v_e);
        }
    }