SAP LINE_LAYOUT_DISPLAY Function Module for Line structure fast entry: display of the variants

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LINE_LAYOUT_DISPLAY is a standard line layout display SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Line structure fast entry: display of the variants processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for line layout display FM, simply by entering the name LINE_LAYOUT_DISPLAY into the relevant SAP transaction such as SE37 or SE38.

Function Group: F034
Program Name: SAPLF034
Main Program: SAPLF034
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function LINE_LAYOUT_DISPLAY pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'LINE_LAYOUT_DISPLAY'"Line structure fast entry: display of the variants
  EXPORTING
   I_ANWND =  "Application
*  I_BUVAR = ' ' "Screen variant
*  I_IFTWO = ' ' "Switching in the background, if only two variants
*  I_MODUS = '1' "Processing mode (see documentation)
   I_PROGN =  "Program
   I_VARNR =  "Variant
*  I_SHIFT = ' ' "

 IMPORTING
   E_ANZRO =  "Number of lines of the selected variant
   E_COUNT =  "Number of Variants
   E_DYNNR =  "Screen number
   E_LTEXT =  "Name of the selected variant
   E_VARNR =  "Selected Variant

TABLES
*  T_FIELDS =  "Fields of the Variant

EXCEPTIONS
   INVALID_CALL = 1    INVALID_VARIANT = 2    NOTHING_DEFINED = 3    NOTHING_SELECTED = 4    FIRST_LAYOUT_REACHED = 5    LAST_LAYOUT_REACHED = 6 

.

IMPORTING Parameters details for LINE_LAYOUT_DISPLAY

I_ANWND - Application

Data type: T021D-ANWND
Optional: No
Call by Reference: No ( called with pass by value option)

I_BUVAR - Screen variant

Data type: T021H-BUVAR
Default: ' '
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_IFTWO - Switching in the background, if only two variants

Data type: T021H-BUVAR
Default: ' '
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_MODUS - Processing mode (see documentation)

Data type: T021H-BUVAR
Default: '1'
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_PROGN - Program

Data type: T021D-PROGN
Optional: No
Call by Reference: No ( called with pass by value option)

I_VARNR - Variant

Data type: T021D-VARNR
Optional: No
Call by Reference: No ( called with pass by value option)

I_SHIFT -

Data type: T021H-BUVAR
Default: ' '
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXPORTING Parameters details for LINE_LAYOUT_DISPLAY

E_ANZRO - Number of lines of the selected variant

Data type: T021F-ANZRO
Optional: No
Call by Reference: No ( called with pass by value option)

E_COUNT - Number of Variants

Data type: SY-TFILL
Optional: No
Call by Reference: No ( called with pass by value option)

E_DYNNR - Screen number

Data type: T021D-DYNNR
Optional: No
Call by Reference: No ( called with pass by value option)

E_LTEXT - Name of the selected variant

Data type: T021G-LTEXT
Optional: No
Call by Reference: No ( called with pass by value option)

E_VARNR - Selected Variant

Data type: T021D-VARNR
Optional: No
Call by Reference: No ( called with pass by value option)

TABLES Parameters details for LINE_LAYOUT_DISPLAY

T_FIELDS - Fields of the Variant

Data type: T021I
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

INVALID_CALL - Invalid Call

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

INVALID_VARIANT - Invalid Variant

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

NOTHING_DEFINED - No active variants defined

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

NOTHING_SELECTED - No variant chosen

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

FIRST_LAYOUT_REACHED - First variant reached

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

LAST_LAYOUT_REACHED - Final variant reached

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for LINE_LAYOUT_DISPLAY Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM LINE_LAYOUT_DISPLAY

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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