ALV report: How to merge 2 columns into 1 column?

Question

Hello,
I have a list of data which I would like format the header to look as below:
| -
Quater 1---- | -
Quater 2 -
| -
Quater 3---- | -
Quater 4---- |  <--- header 1
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | <--- header 2
| -
F---- | -
S- | -F-- | -
S- | -F-- | -
S- | -F-- | -
S- | <- header 3
xxxxxxx | xxxxxx | xxxxx | xxxxx | xxxxxx | xxxxx | xxxxxx | xxxxx |  <--- data lines start here....
Is there anyway I able to achieve this layout?
I found quite a numerous of "cell_merge" information on ALV but I do not know how exactly it work and how to modify it?
Would be appreaciate if anyone of you able to guide me with sample code.
Thanks in advance,
Aish :P

Answer 1

Hi,
U can do this by using Row position in FIELD CATALOG.
Steps are:
u2022     First we have to declare an internal table of output type with few dummy character type fields.
u2022     Use this structure when populating field catalog.
u2022     When populating field catalog we have to change row position, column position, offset value, field length, text, reference table and field name (if required), justification etc.
u2022     Pass this field catalog as exporting parameter into function module u2018REUSE_ALV_LIST_DISPALYu2019.
Type declaration for Output table
     TYPES: BEGIN OF ty_address,
         add_detl(1)     TYPE c,            u201CDummy field
         add_init(1)     TYPE c,            u201CDummy field
         pers_detl(1)    TYPE c,            u201CDummy field
         res_detl(1)     TYPE c,            u201CDummy field
         off_detl(1)     TYPE c,            u201CDummy field
         addrnumber      TYPE ad_addrnum,   "Address number
         name1           TYPE ad_name1,     "First Name
         name2           TYPE ad_name2,     "Middle Name
         name3           TYPE ad_name3,     "Last Name
         home_city       TYPE ad_city3,     "Residential City
         city2           TYPE ad_city2,     "District
         post_code1      TYPE ad_pstcd1,    "Residential postal code
         city1           TYPE ad_city1,     "Office City
         post_code2      TYPE ad_pstcd2,    "Office postal code
         tel_number      TYPE ad_tlnmbr1,   "First telephone no.
         tel_extens      TYPE ad_tlxtns1,   "First Telephone No.: Extension
         fax_number      TYPE ad_fxnmbr1,   "First fax no.
       END OF ty_address.
In the above type declaration first five fields are used to populate field catalog only for the first and second line headings. These fields do not contain any data.
Main processing:
To get multiple line ALV layout we have to declare few dummy fields. When we build field catalog, then we have to put those dummy fields in proper places. In our example last 12 fields are known as valid fields with data and first 5 fields (1 at first line and 4 at second line) are knows as invalid or dummy variables containing no data.
When we build field catalog, we call a perform name CREATE_CATALOG using
                                                Column position          Row position
                                     Field name                   Table name
                                     Justification             Text heading
                                     Reference table         Reference field
                                     Output length       Offset value
For the first row, we have to set row position 1, column position 1. When we call the perform we have to pass, these two values in addition with dummy field name (ADD_DETL), table name (I_ADDRESS), justification (left or right), text (Address Details), Reference table and Reference field name (we can pass SPACE, if not required), Output length and Offset value (Length from left margin or last field, for the first row it is 225. Means the text u201CAddress Detailsu201D  will be printed at 225th char position).
  l_off    = 225.        "Offset Value
  l_pos    = 1.          "Column position
  l_row    = 1.          "Row position
  l_just   = u2018Lu2019.        "Allignment (u2018Lu2019 for Left)
  l_outlen = 50.         "Field length
Address Details *****************
  PERFORM    create_catalog USING
  l_pos l_row 'ADD_DETL' 'I_ADDRESS' l_just text-002 space space l_outlen  
  l_off.
Perform CREATE_CATALOG is used to append the field catalog table with the passing parameters.
SUBROUTINE ***************************************
FORM create_catalog  USING    p_pos     TYPE sycucol
                              p_row     TYPE sycurow
                              p_field   TYPE any
                              p_tab     TYPE any
                              p_just    TYPE char1
                              p_text    TYPE reptext
                              p_reftab  TYPE any
                              p_reffld  TYPE any
                              p_outlen  TYPE outputlen
                              p_off     TYPE outputlen.
  s_fieldcat-col_pos            = p_pos.     "Column position
  s_fieldcat-row_pos            = p_row.     "Row position
  s_fieldcat-fieldname          = p_field.   "Field name
  s_fieldcat-tabname            = p_tab.     "Table name
  s_fieldcat-just               = p_just.    "Justification
  s_fieldcat-reptext_ddic       = p_text.    "Text heading
  s_fieldcat-ref_tabname        = p_reftab.  "Reference table
  s_fieldcat-ref_fieldname      = p_reffld.  "Reference field
  s_fieldcat-outputlen          = p_outlen.  "Output length
  s_fieldcat-offset             = p_off.     "Offset value
  APPEND s_fieldcat TO i_fieldcat.
  CLEAR  s_fieldcat.
ENDFORM.                    " create_catalog
Regards,
Joy.