ALV - putting itab as header

Question

Hi Guys,
I would like to put the contents of an itab at the start of an ALV output as Element of Type Grid with gridlines.
DATA it_spfli TYPE spfli_tab.
SELECT * FROM spfli INTO TABLE it_spfli.
Just as an example,I would like out put the "carrid" and "connid" fields of the itab as header info.
Is there a way to do it.Is it performant?
The reason why I want to do it is I need to have 2 different outputs on the same screen.
The first one I thought - could be put in as an ALV header (The itab I mentioned above)and
the second one in an ALV itself so that they could both be seen on the same screen.
A sample code for the header itab would be great....
Thanks
P

Answer 1

Hi,
Here is another way to achieve this. This technique will display multiple ALV GRID's in one screen.
1. First define 2 custom containers in your screen and name them accordingly say u201CCONT1u201D and u201CCONT2u201D.
2. In your data declaration defines the variables say as below.
DATA: g_container1 TYPE scrfname VALUE 'CONT1',
                    g_container2 TYPE scrfname VALUE 'CONT2',
                    grid1 TYPE REF TO cl_gui_alv_grid,
                    grid2  TYPE REF TO cl_gui_alv_grid,
                    g_custom_container1 TYPE REF TO cl_gui_custom_container,
                    g_custom_container2 TYPE REF TO cl_gui_custom_container.
3. Now there is one main thing to understand u2013what is the use of the Class cl_gui_custom_container? Actually, the custom objects that one can see in the attached screen shot are two containers, which need to be attached with objects of type ref to cl_gui_custom_container by way of coding. Now on this container object will sit two alv grid containers and the alv grid containers will hold the data.           
4. Follow the below lines of code.
* Create the custom container object and attachwith the screen container u2018CONT1u2019.
     IF g_custom_container1 IS INITIAL.
    CREATE OBJECT g_custom_container1
           EXPORTING container_name = g_container1.
Now create the grid object: -
    CREATE OBJECT grid1
           EXPORTING i_parent = g_custom_container1.
* Now call the method u2018SET_TABLE_FOR_FIRST_DISPLAYu2019 and pass the required parameters.
   CALL METHOD grid1->set_table_for_first_display
      EXPORTING
        i_structure_name = 'MARA'
      CHANGING
        it_outtab        = gt_mara.   u201CThe internal table containing the data
  ENDIF.
* Follow the same procedure for the other custom control also.
IF g_custom_container2 IS INITIAL.
    CREATE OBJECT g_custom_container2
           EXPORTING container_name = g_container2.
    CREATE OBJECT grid2
           EXPORTING i_parent = g_custom_container2.
    CALL METHOD grid2->set_table_for_first_display
      EXPORTING
        i_structure_name = 'MARA'
      CHANGING
        it_outtab        = gt_mara.
  ENDIF.
5. We can create as many grids as we need using the above technique.                                                   
Regards,
Ganga