By Joyjit Ghosh
Expected Layout of the ALV report (when printing):
Step 1: Display each new document in a new page
CONSTANTS:
c_spos TYPE SLIS_SPOS VALUE '01', " Column position
c_up TYPE SLIS_SOUP VALUE 'X', " Sorting order
c_table TYPE tabname VALUE 'I_FINAL'," Name of o/p table
c_group TYPE SLIS_CTRLS VALUE '*', " Sorting group
c_fld2 TYPE fieldname VALUE 'IDCNGA04-IDCN037'." Field name(Document no) * Prepare sort table
PERFORM prepare_sort_table CHANGING i_sort[]. FORM prepare_sort_table CHANGING pi_sort TYPE slis_t_sortinfo_alv. CLEAR st_sort.
st_sort-spos = c_spos. " Sort sequence
st_sort-fieldname = c_fld2. " Document no
st_sort-tabname = c_table. " Table name
st_sort-up = c_up. " Ascending
st_sort-group = c_group. " Group * Populate sort table
APPEND st_sort TO pi_sort. ENDFORM. "prepare_sort_table Step 2: Reset page number to 1 for each new document
From ALV function module we cannot control the page numbers as it will automatically increment the page counter whenever a new page is printed. So to achieve this we have written our custom code within the TOP_OF_PAGE routine.
* Prepare event table
PERFORM prepare_event_table.
FORM prepare_event_table . * Populate top-of-page event
st_event-name = slis_ev_top_of_page.
st_event-form = slis_ev_top_of_page.
APPEND st_event TO i_event. CLEAR st_event. ENDFORM. " prepare_event_table Custom code to control the page number in TOP_OF_PAGE routine
Code block marked in bold are used to control the page number. As in our case we are using ALV grid to display the report so during report display page number is not visible. It is only visible in print preview or at the time of printing.
FORM top_of_page. * Local variable declaration
STATICS: l_comm TYPE syucomm. " Store user command * Declaration of local variables
DATA: l_line_size TYPE sylinsz, " Line size
l_line TYPE slis_listheader, " Hold list header
l_currdoc TYPE idcn037, " Current doc.
l_currtabix TYPE sytabix. " Current index * Check for print or print preview
IF ( sy-ucomm = c_prin OR
sy-ucomm = c_rnt_prev OR
sy-ucomm = c_rnt ). IF l_comm <> sy-ucomm.
CLEAR : g_page_cnt. ENDIF. " l_comm <> sy-ucomm * Store current table index
l_currtabix = sy-tabix.
CLEAR st_final. * If current index is 1 then start page numbering from 1
IF l_currtabix = 1. * Read 1st record and store the document no
READ TABLE i_final INDEX l_currtabix INTO st_final.
g_prevdoc = st_final-idcnga04-idcn037. * Start page numbering from 1
g_page_cnt = 1.
g_prevtabix = 1. ELSE. * Read the table line
READ TABLE i_final INDEX l_currtabix INTO st_final. * Store the current document
l_currdoc = st_final-idcnga04-idcn037. * If the current doc. is same as previou doc.
* increament the page no, otherwise start it from 1
IF l_currdoc = g_prevdoc. * Increament the page no
g_page_cnt = g_page_cnt + 1.
ELSE. * Start page from 1
g_page_cnt = 1. * Store current doc. as previous doc.
g_prevdoc = l_currdoc. ENDIF. " l_currdoc = g_prevdoc ENDIF. " l_currtabix = 1 ENDIF. " sy-ucomm = c_prin OR IF g_page_cnt = 1. * Store the user command
l_comm = sy-ucomm. ENDIF. " g_page_cnt = 1 * Display page no
IF g_page_cnt > 0 . * Store the report width
l_line_size = sy-linsz. * Calculate position
l_line_size = l_line_size - 10. * Display page no
WRITE AT l_line_size 'Page no:'(021). * Calculate position
l_line_size = l_line_size + 5. WRITE AT l_line_size g_page_cnt. ENDIF. " g_page_cnt > 0 REFRESH st_list_top_of_page. * Populate company name
CLEAR l_line.
l_line-typ = c_typ.
l_line-info = g_comp_name.
APPEND l_line TO st_list_top_of_page. * Populate heading
CLEAR l_line.
l_line-typ = c_typ.
l_line-info = text-020.
APPEND l_line TO st_list_top_of_page. * At the time of printing or print preview display additional info
* on 1st page
IF g_page_cnt = 1 AND
( sy-ucomm = c_prin OR
sy-ucomm = c_rnt_prev OR
sy-ucomm = c_rnt ). CLEAR l_line.
l_line-typ = 'A'. * Populate Staff name
CONCATENATE text-017
st_final-idcnga04-idcn053
INTO l_line-info
SEPARATED BY ':'.
APPEND l_line TO st_list_top_of_page. CLEAR l_line.
l_line-typ = 'A'. * Populate Accountant
CONCATENATE text-018
'______________________'
INTO l_line-info
SEPARATED BY ':'. APPEND l_line TO st_list_top_of_page. CLEAR l_line.
l_line-typ = 'A'. * Populate Book keeper
CONCATENATE text-019
'______________________'
INTO l_line-info
SEPARATED BY ':'. APPEND l_line TO st_list_top_of_page. l_line-typ = 'A'.
l_line-info = space.
APPEND l_line TO st_list_top_of_page. ENDIF. * Display list header
CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
EXPORTING
i_logo = space
it_list_commentary = st_list_top_of_page. * No sy-subrc check is required ENDFORM. " top_of_page Step 3: Display report
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
i_callback_program = l_prog " Call back progrm
it_fieldcat = i_fieldcat_msg " Field catalog
is_layout = st_layout " Layout
it_sort = i_sort[] " Sort table
i_save = c_save " 'A'
is_variant = l_variant " ALV variant
it_events = i_event " ALV events
is_print = st_print " Print parameters
TABLES
t_outtab = i_final " Output table
EXCEPTIONS
program_error = 1
OTHERS = 2. Result:
Report is displayed in ALV grid. Note that no page number is displayed. Now press the print preview button
Report is displayed in print preview with page numbers. 
Limitations:
- For positioning the page number in the report we have to calculate the position based on the list width. As in this case we are using the formula
Page number position = sy-linsz – 10. But if you want you can change it.
only the 1st page number will be visible. You can see all the page numbers at the time of actual printing.
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