0 ABAP EMAIL OUTPUT

ABAP EMAIL OUTPUT

0 ALV REPORTS

ALV REPORTS:

Which is used to displayed the output with predefined functionality such as

1.Sort list in ascending order

2.Sort list descending order

3. Toatals

4.Filtering

5.Down the list

6.Change the layout

7.Send as attachment

8.word processing

9.Excel sheet

10.Print preview

11.Graphics

Function modules that are used in ALV reports:

1.REUSE_ALV_LIST_DISPLAY

2.REUSE_ALV_GRID_DISPLAY

3.REUSE_ALV_EVENT_GET

4.REUSE_ALV_COMMENTRY_WRITE

5.REUSE_ALV_FIELDCATALOG_MERGE

6.REUSE_ALV_VARIANT_DEFAULT_GET

7.REUSE_ALV_VARIANT_F4

8.REUSE_ALV_VARIANT_EXISTENCE

9.REUSE_ALV_POPUP_TO_SELECT

10.REUSE_ALV_BLOCK_LIST_INIT

11.REUSE_ALV_BLOCK_LIST_APPEND

12.REUSE_ALV_BLOCK_LIST_DISPLAY

13.REUSE_ALV_HIERSEQ_LIST_DISPLAY

Field Catalog: is a structure for populate the fieldnames in ALV report we are using the field catalog structure

Here we need to fill the field catalog

Some of the fields of fieldcatalog:

1.Fieldname   – field name

2.col_pos      - column position

3. Seltext_l          column heading

    Seltext_s

4.Emphasize – color

5.Edit – changeable mode

6. Hotspot – Handle symbol

7.No_sign – Remove the leading sign

8.No_zero – Remove the leading zero’s

9.No_output – Hide the field

10.Outputlen – Length of the displayed field

11.Tabname – Internal table name

Detail description of REUSE_ALV_LIST_DISPLAY and REUSE_ALV_GRID_DISPLAY:

1.      REUSE_ALV_LIST_DISPLAY

2.      REUSE_ALV_GRID_DISPLAY

The other function module is used to display the internal output table with the contents

FUNCTION reuse_alv_list_display.

*"----------------------------------------------------------------------  

*"*"Lokale Schnittstelle:                                                 

*” IMPORTING                                                        

*"             VALUE(I_INTERFACE_CHECK) DEFAULT SPACE                     

*"             VALUE(I_CALLBACK_PROGRAM) LIKE  SY-REPID DEFAULT SPACE     

*"             VALUE(I_CALLBACK_PF_STATUS_SET) TYPE  SLIS_FORMNAME        

*"                             DEFAULT SPACE                              

*"             VALUE(I_CALLBACK_USER_COMMAND) TYPE  SLIS_FORMNAME         

*"                             DEFAULT SPACE                              

*"             VALUE(I_STRUCTURE_NAME) LIKE  DD02L-TABNAME OPTIONAL       

*"             VALUE(IS_LAYOUT) TYPE  SLIS_LAYOUT_ALV OPTIONAL            

*"             VALUE(IT_FIELDCAT) TYPE  SLIS_T_FIELDCAT_ALV OPTIONAL      

*"             VALUE(IT_EXCLUDING) TYPE  SLIS_T_EXTAB OPTIONAL            

*"             VALUE(IT_SPECIAL_GROUPS) TYPE  SLIS_T_SP_GROUP_ALV         

*"                             OPTIONAL                                   

*"             VALUE(IT_SORT) TYPE  SLIS_T_SORTINFO_ALV OPTIONAL          

*"             VALUE(IT_FILTER) TYPE  SLIS_T_FILTER_ALV OPTIONAL          

*"             VALUE(IS_SEL_HIDE) TYPE  SLIS_SEL_HIDE_ALV OPTIONAL        

*"           VALUE(I_DEFAULT) DEFAULT 'X'

"             VALUE(I_SAVE) DEFAULT SPACE                              

"             VALUE(IS_VARIANT) LIKE  DISVARIANT                      

"                             STRUCTURE  DISVARIANT DEFAULT SPACE     

"             VALUE(IT_EVENTS) TYPE  SLIS_T_EVENT OPTIONAL            

"             VALUE(IT_EVENT_EXIT) TYPE  SLIS_T_EVENT_EXIT OPTIONAL   

"             VALUE(IS_PRINT) TYPE  SLIS_PRINT_ALV OPTIONAL           

"             VALUE(IS_REPREP_ID) TYPE  SLIS_REPREP_ID OPTIONAL       

"             VALUE(I_SCREEN_START_COLUMN) DEFAULT 0                  

"             VALUE(I_SCREEN_START_LINE) DEFAULT 0                    

"             VALUE(I_SCREEN_END_COLUMN) DEFAULT 0                    

"             VALUE(I_SCREEN_END_LINE) DEFAULT 0                      

"       EXPORTING                                                      

"             VALUE(E_EXIT_CAUSED_BY_CALLER)                          

"             VALUE(ES_EXIT_CAUSED_BY_USER) TYPE  SLIS_EXIT_BY_USER   

"       TABLES                                                        

"              T_OUTTAB                                               

"       EXCEPTIONS                                                    

"              PROGRAM_ERROR

Import parameters

I_INTERFACE_CHECK: Interface consistency check log output.

I_CALLBACK_PROGRAM: Name of the calling program

I_CALLBACK_PF_STATUS_SET: Set EXIT routine to status.   

I_CALLBACK_USER_COMMAND: EXIT routine for command handling

I_STRUCTURE_NAME: Internal output table structure name     

IS_LAYOUT: List layout specifications 

IT_FIELDCAT: Field catalog with field descriptions

IT_EXCLUDING: Table of inactive function codes   

IT_SPECIAL_GROUPS: Grouping fields for column selection

IT_SORT: Sort criteria for first list display

IT_FILTER: Filter criteria for first list output

IS_SEL_HIDE    : Selection information modification

I_DEFAULT:      Initial variant active/inactive logic

I_SAVE: Variants can be saved

IS_VARIANT      : Variant information

IT_EVENTS: Table of events to perform

IT_EVENT_EXIT :  Standard fcode exit requests table  

IS_PRINT: Print information

IS_REPREP_ID: Initialization keys for Re/Re interface

I_SCREEN_START_COLUMN: Coordinates for list in dialog box

I_SCREEN_START_LINE: Coordinates for list in dialog box

I_SCREEN_END_COLUMN: Coordinates for list in dialog box         

I_SCREEN_END_LINE: Coordinates for list in dialog box       

IT_EVENT_EXIT: Standard fcode exit requests table

IS_PRINT: Print information

IS_REPREP_ID: Initialization keys for Re/Re interface

I_SCREEN_START_COLUMN: Coordinates for list in dialog box  

I_SCREEN_START_LINE: Coordinates for list in dialog box       

I_SCREEN_END_COLUMN: Coordinates for list in dialog box        

I_SCREEN_END_LINE: Coordinates for list in dialog box  

Export parameters

E_EXIT_CAUSED_BY_CALLER: Delete list in CALLBACK_USER_COMMAND

ES_EXIT_CAUSED_BY_USER: How the user left the list Tables       

T_OUTTAB: Table with data to be displayed ---mandatory

Documentation on function module: REUSE_ALV_GRID_DISPLAY

The function module outputs an internal table with whatever structure in the form of a formatted single- or multi-line list.

Process:

1.Passing an internal table with the set of information to be output

2.Passing a structure with general layout specifications for list  layout

3.Passing a field catalog in the form of an internal table

The field catalog describes the fields to be output in the list.

Notes:

1.All interactions performed on the list refer directly to the internal output table. Sorting the list, for example, also involves a resorting of the internal output table passed (since it was passed by reference).

2.An important factor determining the usability of the tool or of   various generic functions (totals, subtotals) is the expected amount of data to be displayed.

Parameters :

• I_INTERFACE_CHECK
• I_BYPASSING_BUFFER
• I_BUFFER_ACTIVE
• I_CALLBACK_PROGRAM
• I_CALLBACK_PF_STATUS_SET
• I_CALLBACK_USER_COMMAND
• I_CALLBACK_TOP_OF_PAGE
• I_CALLBACK_HTML_TOP_OF_PAGE
• I_CALLBACK_HTML_END_OF_LIST
• I_STRUCTURE_NAME
• I_BACKGROUND_ID
• I_GRID_TITLE
• I_GRID_SETTINGS
• IS_LAYOUT
• IT_FIELDCAT
• IT_EXCLUDING
• IT_SPECIAL_GROUPS
• IT_SORT
• IT_FILTER
• IS_SEL_HIDE
• I_DEFAULT
• I_SAVE
• IS_VARIANT
• IT_EVENTS
• IT_EVENT_EXIT
• IS_PRINT
• IS_REPREP_ID
• I_SCREEN_START_COLUMN
• I_SCREEN_START_LINE
• I_SCREEN_END_COLUMN
• I_SCREEN_END_LINE
• IT_ALV_GRAPHICS
• IT_ADD_FIELDCAT
• IT_HYPERLINK
• E_EXIT_CAUSED_BY_CALLER
• ES_EXIT_CAUSED_BY_USER

I_CALLBACK_PROGRAM:Name of the calling program

Program from which the function module is called and that contains the  exit routines. The program should always be a report, function group, module pool or form routine pool (it should not be an include).

Caution: Never pass SY-REPID directly at the interface. If field SY-REPID contains the desired program name, you must absolutely assign this name to an auxiliary variable and pass this variable to the   interface.

I_CALLBACK_PF_STATUS_SET: Set EXIT runtime to status

Passing an EXIT routine indicates to the ALV that the caller wants to  set a self-defined user  status.  As a result, the default status of the ALV is not set.  The interface of the form routine specified must be defined as follows:

FORM set_pf_status USING rt_extab TYPE slis_t_extab

Table RT_EXTAB contains the function codes that would be hidden on the standard user interface.

If the caller wants to use a self-defined user interface (for example, in order to provide additional list functions or use existing functions), we recommend that you copy standard status STANDARD from function group SALV and modify it accordingly. ALV standard function codes always start with '&'.

See also the documentation on parameter  I_CALLBACK_USER_COMMAND.

If a self-defined user interface is used that includes function codes of the standard user     

  interface, the function codes of the excluding table  passed should be taken into account.

This means that the user status should generally be set as follows:

        SET PF-STATUS user status EXCLUDING rt_extab.

 Application functions can be added to excluding table rt_extab if they  are to be disabled.

The routine is called whenever the standard user interface would be set  with SET PF-

  STATUS.

Default

If no EXIT routine is specified, the ALV sets a status that corresponds  to status STANDARD of function group SALV.

I_CALLBACK_USER_COMMAND

 EXIT routine for command handling

Description

Passing an EXIT routine indicates to the ALV that the application wants  to respond to certain function codes.

Generally, these are function codes that are unknown to the ALV (that  is, are not standard ALV functions) and that were defined and set by a user status.

See also the documentation on parameter  I_CALLBACK_PF_STATUS_SET.

The interface of the form routine specified must be defined as follows:

FORM user_command  USING r_ucomm LIKE sy-ucomm

                                  rs_selfield TYPE slis_selfield.

 Parameter R_UCOMM contains the function code triggered.

 Structure RS_SELFIELD contains the following information:

tabname        : Name of the internal output table

tabindex        : Index of the internal output table

fieldname      : Field name

endsum         : Cursor is located on the totals line

sumindex     : If >0, the cursor is located on a subtotals line

value              : Value of the field on the list

refresh           : (Exporting) List should be set up again

col_stable     : (Exporting) Keep column position when list is set up    again

row_stable   : (Exporting) Keep row position when list is set up again

exit                             : (Exporting) Exit list (and ALV)

before_action          : Call before standard action execution

after_action : Call after standard action execution, before list    setup

ignore_multi            : Internal use

sel_tab_field            : Internal use

The EXIT routine is called whenever a function unknown to the ALV is   triggered or if the routine call before/after the execution of a standard function code has been defined by interface parameter -     IT_EVENT_EXIT.

See also the documentation on parameter IT_EVENT_EXIT.

The function code and the current cursor position are then passed on to  the calling program through the EXIT routine.

If the user has selected multiple rows by selecting checkboxes, the  output table field designated as the checkbox contains the current state  of the checkbox in the list.

I_CALLBACK_TOP_OF_PAGE

EXIT routine for handling TOP-OF-PAGE

Description

If the caller specifies an EXIT routine, this routine must have the   following form:

FORM top_of_page.

Module REUSE_ALV_COMMENTARY_WRITE can then be called within the EXIT routine. This module is responsible for formatting the header information and also ensures online TML formatting. In the print  preview or in batch mode, the text passed is then output in the normal

format.

If module REUSE_ALV_COMMENTARY_WRITE cannot be used, you must use two  parameters instead. In I_CALLBACK_TOP_OF_PAGE you pass the form routine that is responsible for normal formatting in batch mode or in the print preview mode. The form routine that is responsible for online  formatting, is passed in parameter I_CALLBACK_HTML_TOP_OF_PAGE. If one  of these parameters is not filled, top-of-page is not output in the  respective mode.

I_CALLBACK_HTML_TOP_OF_PAGE

EXIT routine for HTML TOP-OF-PAGE

Description

If function module REUSE_ALV_COMMENTARY_WRITE is not used in the form   for CALLBACK_TOP_OF_PAGE, the form routine must be passed in parameter         I_CALLBACK_HTML_TOP_OF_PAGE for the online mode. The form should then have the following format:

form top_of_page using cl_dd type ref to cl_dd_document.

In the form, you can, for example, use methods of class CL_DD_DOCUMENT to display text in HTML format.

I_CALLBACK_HTML_END_OF_LIST

EXIT routine for HTML END-OF-LIST

Description

In this parameter, you can pass a form for the online handling of   end-of-list. The form must have the followiong format:

form end_of_list using cl_dd type ref to cl_dd_document.

I_STRUCTURE_NAME

Internal output table structure name

Description

If the internal output table is defined through an ABAP Dictionary   structure (INCLUDE STRUCTURE struct or LIKE struct), you can  automatically set up the field catalog by passing the structure name.

The field catalog is then internally set up for this structure as follows:

1.All fields are on the list (NO_OUT = SPACE) except fields of data   type CLNT.

2.The key fields of the Dictionary structure are adopted in the field  catalog as key fields.

3. References to unit fields stored in the Dictionary are adopted provided that the reference fields are contained in the structure.

 4.If you additionally pass a field catalog as parameter, the structure information is merged with this field catalog.

For more information on how to set up the field catalog automatically,  see the documentation on function module  REUSE_ALV_FIELDCATALOG_MERGE.

I_GRID_TITLE:

Control title

Description :   Specifies the title of the control. This text is displayed above the grid.

I_GRID_SETTINGS

Used for Grid settings

Description

If Top-of-Page or End-of-List are output online, these areas are   displayed in a splitter above or below the list. Using I_GRID_SETTINGS  you can reduce the default size to 0%. To do this, you use two fields:

COLL_TOP_P: Sets Top-of-Page to 0%

COLL_END_L: Sets End-of-List to 0%

IS_LAYOUT

List layout specifications

Description

Structure for describing the list to be output.

The parameters are described and grouped based on the following categories:

• Display options
• Exceptions
• Totals
• Interaction
• Detail screen
• Color
• Other

Note the section on pre-defined settings.

Display options

colwidth_optimize

     Value range: SPACE, 'X'

     X' = Optimizes the column width to ensure that the content is

displayed completely.

no_colhead

Value range: SPACE, 'X'

'X' = Do not output column headings.

zebra

Value range: SPACE, 'X'

'X' = Striped pattern (for wide lists, for example)

no_vline

          Value range: SPACE, 'X'

          'X' = Separate columns by SPACE.

IT_FIELDCAT

Field catalog with field descriptions

Description

Field catalog containing the field descriptions of the fields to be considered for the list output (usually, this is a subset of the fields  in the internal output table).

Basically, you need a field catalog for each list output that uses the  ALV.

The field catalog associated with the output table is generated in the code of the caller. You can generate the field catalog automatically or semi-automatically by calling function module

 REUSE_ALV_FIELDCATALOG_MERGE.

See also the documentation on function module : REUSE_ALV_FIELDCATALOG_MERGE.

The minimum values required for the field catalog are documented in the 'Default' section. The caller can optionally use all other parameters to  assign non-standard output attributes to a field.

It is only in the following cases that you are not required to generate  the field catalog and pass it explicitly:

1.The structure of the internal table to be output corresponds to a   structure stored in the Data Dictionary and is referenced with LIKE   or INCLUDE STRUCTURE in the declaration of the internal table.

2.All fields of this structure should be output in the list.

3.The structure name is declared to the ALV using parameter I_STRUCTURE_NAME.

See also the documentation on IMPORTNG parameter  I_STRUCTURE_NAME.

Positioning

1.col_pos (column position)

        Value range: 0, 1 - 60

Only relevant if the relative column positions should by default not   be identical to the sequence of the fields in the field catalog.

The parameter determines the relative column position of the field   in the list output. The column sequence can interactively be changed  by the user. If this parameter is set to its initial value for each  field catalog entry, the columns are arranged in the order of the   fields in the field catalog.

Identification

fieldname (field name)

         Value range: Field name of the internal output table (required    parameter)

         Field name of the field in the internal output table that is   described by this field                          

         catalog entry.

Reference to the Data Dictionary

ref_fieldname (field name of the reference field)

            Value range: SPACE, name of a field in the Data Dictionary Name of the referenced                           

                                 field in the Data Dictionary.

This parameter is only required if the field in the internal output  table that is described by the current entry in the field catalog  has a reference to the Data Dictionary (that is, is not a program  field) and if the field name in the internal output table is not  identical to the field name of the field in the Data Dictionary. If  both field names are identical, it is sufficient to specify the Data   Dictionary structure or table in parameter FIELDCAT-REF_TABNAME.

ref_tabname (field name of the reference table/structure)

         Value range: SPACE, name of a structure or table in the Data Dictionary      

         Structure or table name of the referenced field in the Data Dictionary.

This parameter is only required if the field in the internal output table that is described by the current entry in the field catalog   has a reference to the Data Dictionary (that is, is not a program field).

Reference to fields with currency units/units of measure Each amount or quantity field of the internal output table whose decimal places are to be displayed with the proper unit in the list

 output, must comply with the following conventions:

-The field is of data type QUAN or CURR (internal type P). (Physically, the field must 

Actually belong to this data type.Overriding the physical data type with parameter          

    FIELDCAT-DATATYPE has no effect.)

-   There is one field in the internal output table that contains   the relevant unit.

 -   There is also an entry for the unit field in the field catalog. (If the unit should not be displayed as a column in the list and the user should not be able to show the unit interactively, for  example, because the unit is always unique and therefore explicitly output by the caller in the list header, then you can assign parameter FIELDCAT-TECH  = 'X' to the field catalog entry for the unit field.

If a value field has a reference to a unit, this has the following effects when the list is output:

 -   The decimal places are displayed with the proper unit.

 -   An initial value field with reference to a non-initial unit is  displayed as '0' (provided that FIELDCAT-NO_ZERO is initial). If  unit-specific totals are calculated for this value field, the unit is considered in the analysis of whether homogeneous units exist.

-   An initial value field with reference to an initial unit is displayed as SPACE. If unit-specific totals are calculated for this value field, the unit SPACE has no effect on the            homogeneity of the unit if the value field is initial.

-   For non-initial value fields with initial unit, the unit SPACE is considered as a unit when unit-specific totals are calculated.

Reference to the currency unit

Cfieldname (field name of the currency unit field) Value range: SPACE, name of a field of the output table Only relevant to amount columns with unit reference.

Field name of the field in the internal output table that contains  the currency unit for the amount field FIELDCAT-FIELDNAME. There must be a separate field catalog entry for the field specified in FIELDCAT-CFIELDNAME.

Reference to the unit of measure

qfieldname (field name of the unit of measure field)

               Value range: SPACE, name of a field of the output table

Only relevant to quantity columns with unit reference.

Field name of the field in the internal output table that contains the unit of measure for the amount field FIELDCAT-FIELDNAME. There must be a separate field catalog entry for the field specified in FIELDCAT-QFIELDNAME.

Output options for a column

outputlen (column width)

       Value range: 0 (initial), n

       For fields with reference to the Data Dictionary you can leave this

       parameter set to initial.

       For fields without reference to the Data Dictionary (program fields)

       you must set the parameter to the desired field output length on the

       list (column width).

       initial = The column width is derived from the output length of the

       referenced field (domain) in the Data Dictionary.

       n = The column width is n characters.

key (key column)

         Value range: SPACE, 'X'

         'X' = Key field (colored output for key fields)

         Key fields cannot be hidden interactively by the user.

         Parameter FIELDCAT-NO_OUT must be left set to initial.

         For exceptions, see the documentation on parameter FIELDCAT-KEY_SEL.

key_sel (key column that can be hidden)

         Value range: SPACE, 'X'

         Only relevant if FIELDCAT-KEY = 'X'

         Key field that can be hidden interactively by the user.

         The user cannot interactively change the sequence of the key

         columns.

         As with non-key fields, output control is performed using parameter

         FIELDCAT-NO_OUT.

no_out (field in the available fields list)

         Value range: SPACE, 'X'

         'X' = Field is not displayed on the current list.

         The field is available to the user in the field list and can be

         interactively selected as a display field.

         At row level, the user can use the detail function to display the

         content of these fields.

         See also the documentation on the 'Detail screen' section of

         parameter IS_LAYOUT.

tech (technical field)

         Value range: SPACE, 'X'

         'X' = Technical field

         The field cannot be output on the list and cannot be shown

         interactively by the user.

         The field may only be used in the field catalog (not in IT_SORT,...).

emphasize (highlight column in color)

        Value range: SPACE, 'X' or 'Cxyz' (x:'1'-'9'; y,z: '0'=off '1'=on)

        'X' = The column is highlighted in the default color for color

        highlighting.

        'Cxyz' = The column is highlighted in the coded color:

-   C: Color (coding must start with C)

 -   x: Color number

-   y: Intensified

 -   z: Inverse

hotspot (column as hotspot)

        Value range: SPACE, 'X'

        'X' = The cells of the column are output as a hotspot.

do_sum (calculate totals for column)

        Value range: SPACE, 'X'

        'X' = Totals are calculated for this field of the internal output

        table.

        This function can also be used interactively by the user.

no_sum (totals calculation not allowed)

        Value range: SPACE, 'X'

        'X' = No totals may be calculated for this field although the data

        type of the field allows totalling.

Formatting column contents

icon (icon)

         Value range: SPACE, 'X'

         'X' = The column contents are displayed as an icon.

         The column contents of the internal output table must consist of

         valid icon strings (@xx@).

         The caller should consider the problem of printing icons.

symbol (symbol)

         Value range: SPACE, 'X'

         'X' = The column contents are output as a symbol.

         The column contents of the internal output table must consist of

         valid symbol characters.

         The caller should consider the problem of printing symbols.

         Although symbols can generally be printed, they are not always shown

         correctly depending on the printer configuration.

just (justification)

         Value range: SPACE, 'R', 'L', 'C'

         Only relevant to fields of data type CHAR or NUMC

         ' ' = Default justification according to data type

         'R' = Right-justified output

'L' = Left-justified output

         'C' = Centered output

         The justification of the column header depends on the justification

         of the column contents. You cannot justify the column header

         independently of the column contents.

lzero (leading zeros)

         Value range: SPACE, 'X'

         Only relevant to fields of data type NUMC

         By default, NUMC fields are output in the ALV right-justified

         without leading zeros.

         'X' = Output with leading zeros

no_sign (no +/- sign)

         Value range: SPACE, 'X'

         Only relevant to value fields

         'X' = Value output without +/- signs.

no_zero (suppress zeros)

         Value range: SPACE, 'X'

         Only relevant to value fields

         'X' = Supress zeros

edit_mask (field formatting)

         Value range: SPACE, mask

         mask = See documentation on the WRITE formatting option

         USING EDIT MASK mask

         Using mask = '== conv' you can force an output conversion conv.

Texts

The following parameters for texts are always required for program fields without reference  

to the Data Dictionary. For fields with reference to the Data Dictionary, the texts are

retrieved from the Data Dictionary. If you do not want this, you can fill the text parameters    

also for fields with reference to the Data Dictionary. If you do this, the corresponding texts from the Data Dictionary will be ignored.

If the user changes the column width interactively, the text with the appropriate length is always used as the column header.

If the user optimizes the column width interactively, both the field contents and the column headings are considered for the list output:

If all field contents are shorter than the shortest column heading, the column width is set based on the column heading.

The long field label is also used in the dialog boxes for defining the display variant, the sort order, and so on.

1.seltext_l (long field label)

2.seltext_m (medium field label)

3.seltext_s (short field label)

4.reptext_ddic (heading)

Same as the 'heading' for data element maintenance.

When the list is output, the system does not necessarily retrieve

 the text stored here, but uses the text that fits best.

ddictxt (determine text)

        Value range: SPACE, 'L', 'M', 'S', 'R'

        Using possible values 'L', 'M', 'S', 'R' you can predefine the

        keyword that should always be retrieved as the column header. If the

        column width is changed, the system tries to find a heading that

        fits the new output width.

Parameter for program fields without reference to the Data Dictionary

        See also the parameter in the 'Texts' section.

datatype (data type)

        Value range: SPACE, data type from the Data Dictionary (CHAR,

        NUMC,...)

        Only relevant to fields without reference to the Data Dictionary.

        Data type of program field

ddic_outputlen (external output length)

        Value range: 0 (initial), n

        Only relevant to fields without reference to the Data Dictionary whose output should         nevertheless be modified using a conversion exit.

        Prerequisites:

-   FIELDCAT-EDIT_MASK = '==conv'

            See also the documentation on parameter FIELDCAT-EDIT_MASK

-   FIELDCAT-INTLEN = n

            See documentation on parameter FIELDCAT-INTLEN

        n = Field output length of the external display

        The column width FIELDCAT-OUTPUTLEN must not be equivalent to the

        output length of the external display (FIELDCAT-DDIC_OUTPUTLEN).

intlen (internal output length)

        Value range: 0 (initial), n

        Only relevant to fields without reference to the Data Dictionary

        whose output should nevertheless be modified using a conversion

        exit.

        Prerequisites:

-   FIELDCAT-EDIT_MASK = '==conv'

            See also the documentation on parameter FIELDCAT-EDIT_MASK

-   FIELDCAT-DDIC_OUTPUTLEN = n

            See also the documentation on parameter FIELDCAT-DDIC_OUTPUTLEN

        n = Field output length of the internal display

rollname (data element)

       Value range: SPACE, name of a data element from the Data Dictionary

       You can use this parameter to provide an F1 help for a program field

       without reference to the Data Dictionary or to provide an F1 help

       other than that of the Data Dictionary for a field with reference to

       the Data Dictionary.

       When the F1 help is called for this field, the documentation for the

       data element assigned is displayed.

       If, for fields with reference to the Data Dictionary,

       FIELDCAT-ROLLNAME is initial, the documentation for the data element

       of the referenced field in the Data Dictionary is displayed.

Default

For internal table fields with reference to a field defined in the Data Dictionary, it is normally sufficient to make the following specifications:

  -   fieldname

 -   ref_tabname

Note:All fields not explicitly mentioned here are either not relevant in this context or are not released.  All other information is retrieved by the ALV from the Data Dictionary.

If you do not specify the relative column position (COL_POS), the fields are output in the list in the order in which they were added to the field catalog.

REF_FIELDNAME must only be specified if the field name of the internal table field is not identical to the field name of the referenced fieldin the Data Dictionary.

Priority rule: Specifications made in the field catalog take priority over specifications in the Data Dictionary.

For internal table fields without reference to the Data Dictionary (program fields), it is normally sufficient to make the following specifications:

 -   fieldname

-   outputlen

-   datatype  (without data type, character is the default)

  -   seltext_s

 -   seltext_l

If you assign a data element to parameter ROLLNAME, you can, for  example, implement an F1 help for program fields.

IT_EXCLUDING

Table of inactive function codes

Description

Optional IMPORTING parameter IT_EXCLUDING is an internal table. You must only fill this table if the caller uses the standard interface of the list tool but does not need certain interface functions and therefore wants to disable them.

In this case, you must enter the function codes of these standard functions into the table.

IT_SORT

Sort criteria for first list display

Description

Using internal table IT_SORT, the caller determines the sort order and/or the subtotalling of the basic list.

The following fields of this internal table must be filled:

·         spos:  Sort order

·         fieldname: Field name in the internal output table

·         up:  'X' = Sorted in ascending order

·         down: 'X' = Sorted in descending order

·         subtot: 'X' = Subtotals for control level changes

·         comp (INTERNAL USE ONLY)

·         expa

·         Prequisite:

·         IT_SORT-SUBTOT = 'X', that is, the sort criterion is also the

·         subtotals criterion.

If no complete breakdown but only a breakdown to totals level n that can be further expanded by the user should be displayed when the list is output for the first time, you must set the indicator for

the totals level criterion of level n.

IT_FILTER

Filter criteria for first list output

Description

Table with filter criteria

Using this parameter, you can pass on filter criteria resulting from explicitly loading a display variant in advance, for example, to list output.  This table should never be set up 'manually'.

IS_SEL_HIDE

Selection information modification

Description

This parameter is currently not supported!

Only relevant if layout parameter LAYOUT-GET_SELINFOS of IMPORTING structure IS_LAYOUT is set.  Complex type for modifying information displayed on the selection dialog

I_DEFAULT

Initial variant active/inactive logic

Description

Initial variant maintenance active/inactive. .

Prerequisite:        Parameter IS_VARIANT is filled accordingly.

See also the documentation on the IMPORTING parameter IS_VARIANT.

 Value Range:   SPACE = Definition of initial variants not allowed

                        'X' =   Definition of initial variants allowed

 Default :      SPACE

I_SAVE

Variants can be saved

Description: Controls the save mode

Prerequisite: Parameter IS_VARIANT is filled accordingly.

See also the documentation on IMPORTING parameter IS_VARIANT.

Value Range

     o   ' ' = Display variants cannot be saved

         Defined display variants (such as delivered display variants) can be

         selected for presentation regardless of this indicator. However,

         changes cannot be saved.

     o   'X' = Standard save mode

         Display variants can be saved as standard display variants.

         Saving display variants as user-specific is not possible.

     o   'U' = User-specific save mode

         Display variants can only be saved as user-specific.

     o   'A' = Standard and user-specific save mode

         Display variants can be saved both as user-specific and as standard

         variants. Users make their choice on the dialog box for saving the

         display variant.

Default : SPACE .

IS_VARIANT

Variant information

Description: This structure is only relevant if display variants are to be saved and/or read.

Variant information including the name of the list variant that is used to output the list.

To allow display variants to be read within the ALV, you must specify the acess path using fields REPORT (required field), HANDLE (optional field) and/or LOG_GROUP (optional field).

if you also want to allow display variants to be saved, you must additionally fill parameter I_SAVE accordingly.

See also the documentation on IMPORTING parameter I_SAVE.

A variant is uniquely described through:

1.    The program to which the variant is assigned (REPORT)

2.The handle (HANDLE), if, for example, multiple lists with different

         structures and data are called in a program (I_CALLBACK_PROGRAM).

         The handle is a CHAR(4) field that must be uniquely defined and

         describes the assignment of the call to the current structure of the

         internal output table.

         Example:

         Depending on the user interaction, several types of lists can be

         output in program x.

         The user should be able to define display variants for each type of

         list.

         You provide this function to the user by assigning a HANDLE to each

         list. If variants for the program and the handle are saved, the

         handle must not be modified any more.

3. The logical group, if, for example, the same list is created with

         different settings through various transactions (LOG_GROUP).

         The logical group is a CHAR(4) that must be uniquely defined and

         specifies the assignment.

         Example:

         Program x is called through transactions T1 and T2. Depending on the

         transaction code, the fields available to the user through the field

         catalog differ in their assignment to different logical groups.

         If variants for the program and the logical group are saved, the

         logical group must not be modified any more.

4.The user name, if user-specific variants are saved (USERNAME).

         You do not have to fill this parameter manually since the variant

         name is unique.

5.The variant name (VARIANT).

         You only have to fill this parameter if this structure is to be used

to read a concrete variant and the list is to be output with this variant.

Value Range: To call a list with a variant, you must specify the above fields.

Default:  If the structure is initial, but saving is active (I_SAVE is not initial), then IS_VARIANT-REPORT = I_CALLBACK_PROGRAM is set.

For a possible entries help for variants, function module

 REUSE_ALV_VARIANT_F4 is available.

Note:

1.SLIS is the type group which contains all the types related to ALV

2.In SLIS we have one type SLIS_T_FIELDCAT_ALV which contains all the fields related to field catalog so we simply declare our field catalog internal table by referring SLIS_T_FIELDCAT_ALV

3.whenever we refer any type group types under type group then we must include the types group name in the program

Syntax for declaring the type group in the SE38 program:

TYPE-POOLS <Type pool name>.

EX: TYPE_POOLS SLIS.