ALV Dynamic header

Question

LAYOUT FORMAT
Program Title
Client Name     Run Date/Time :
Program            : Program Name
User ID              : Page                  : X of Y
Pernr:                                                            
Name:
IC Number:
RBAF / Reference Number:
Rank:
Service:
Unit:
Sub Unit:
No.|  Position| Leave Taken| From|Leave Taken To| Type of Leave|
Leave Entitlement| No. Of Leave Taken|     Present Balance of Leave|
Please help to program dynamic alv header for above format. I have used page break on Pernr but the header is not coming according to pernr. Though I managed
dynamic header when we press Print Preview. But that is not a solution.

Answer 1

Hi,
I did something very similar to your requirement.
There is a predefined event for Reuse_alv_list_display called 'BEFORE_LINE_OUTPUT'. In the event table, you have to specify the <event>-name = 'BEFORE_LINE_OUTPUT' and the <event>-form = 'ALV_BEFORE_LINE_OUTPUT'.
Then you need a form like
FORM alv_before_line_output
  USING ps_lineinfo TYPE kkblo_lineinfo.                    "#EC CALLED
  FIELD-SYMBOLS:
    <prot> TYPE typ_prot.
  READ TABLE gt_prot INDEX ps_lineinfo-tabindex
    ASSIGNING <prot>.
  CHECK g_file_no <> <prot>-file_no.
  g_file_no = <prot>-file_no.
  NEW-PAGE.
ENDFORM.                    "alv_before_line_output
In my program the global table displayed in ALV was gt_prot (of line type typ_prot) and the requirement was to start a new page for each file processed. The form stores the file processed in
g_file_no. If a new file is processed, a NEW-PAGE will trigger the TOP_OF_PAGE event of the alv. I will not copy the form here because we also issued some statistical values, system and user informations and so on.
But I hope you get it done.
The only remaining issue may be that the before_line_output event will cost some time because it is triggered for every output line. But my report was still quite fast.
regards,
Clemens