CL_SALV_TABLE to display details

It seems quite simple but I could not get it works. I need to write a report with header data and when double click on a selected line or click a push button to trigger event, it will show detailed data on a separate screen using CL_SALV_TABLE.
My program show the header data and it work the first time, but when I choose a different header line, it still show the same item data because I have a code when the object is not bound, display the data. I was able to get the correct header line and populate detailed data into the table. The only obstacle I have is that in my code it said
IF gr_cont IS NOT BOUND.
    CREATE OBJECT gr_cont
      EXPORTING
        container_name = 'CONTAINER_100'
      EXCEPTIONS
        OTHERS         = 1.
    IF sy-subrc <> 0.
      MESSAGE a052(zvn) WITH
      ' No container object found'.
    ENDIF.
    TRY.
        cl_salv_table=>factory(
        EXPORTING
*      list_display   = list_display
          r_container = gr_cont
*       container_name =
        IMPORTING
          r_salv_table = gr_alv
        CHANGING
          t_table = gt_orders
      CATCH cx_salv_msg INTO gr_error.
    ENDTRY.
*      Display alv
    gr_alv->display( ).
So when come the second time, the object is not initial. Please help. thanks.
PS: I can use cl_gui_alv_grid but I want to use factory method in cl_salv_table.
Edited by: Matt on Aug 18, 2009 9:21 PM - added tags surround the ABAP so it looks nice...

You need to use
gr_alv->refresh( ).
Its works as same refresh_table_display in cl_gui_alv_grid
a®

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