[VISIBLE LENGTH vlen]
[ MODIF ID
modid ]
[
ldb_additions ].
ABAP_ADDITIONS:
1 ... [/][pos|POS_LOW|POS_HIGH](len)
2 ... USER-COMMAND fcode
3 ... VISIBLE LENGTH vlen
What does it do? This statement creates a
pushbutton on the current selection
screen . The text on the pushbutton is determined by the content of
button_text . The rules that apply to text also apply to
button_text in the addition
COMMENT . The addition MODIF
ID assigns the pushbutton to the
modification group modid
zu.
The additions
ldb_additions can only be used in the selection include for a
logical database .
Latest notes: You can use the function module
ICON_CREATE to assign an icon, a
quick info text and a corresponding text
to a pushbutton. When you do this, you must specify an adequate length
len for the pushbutton so that the icon can be displayed
internally and adjust the visible length with VISIBLE LENGTH .
Once the event block in AT SELECTION-SCREEN has been processed,
the system usually returns to displaying the selection screen. To exit
selection screen processing and
continue executing the program, you can only choose Execute or
Cancel . This means pushbuttons on selection screens are intended
primarily for use for dynamic modifications to the selection screen
rather than to control the program.
ABAP_ADDITION_1 ... [/][pos|POS_LOW|POS_HIGH](len)
What does it do? You must specify the position of the pushbutton using
this addition. The syntax and meaning of are the same as when creating
horizontal lines , although in this
case, len defines the length of the pushbutton on the selection
screen . If a pushbutton extends beyond
position 83 or beyond the edge of a
block with a frame, it is cut off at the right hand side.
ABAP_ADDITION_2 ... USER-COMMAND fcode
What does it do? If you specify the USER-COMMAND addition, the
pushbutton must be assigned a function code fcode . The function
code fcode must be specified directly and can only contain a
maximum of 20 characters.
Before you can work with the pushbutton, you must specify a
TABLES statement to declare an
interface work area for the
structure SSCRFIELDS from the ABAP
Dictionary.
If the user selects the pushbutton on the selection screen, the
runtime environment triggers the event
AT SELECTION-SCREEN and the function code fcode is
transferred to the ucomm component in the interface work area
sscrfields .
Latest notes: If the function code of a pushbutton corresponds to a
function code used in the GUI status of the selection screen, the
selection screen processing is
influenced accordingly.
ABAP_ADDITION_3 ... VISIBLE LENGTH vlen
What does it do? The VISIBLE LENGTH addition defines the visible
length vlen of the pushbutton and your text. The syntax and
meaning of this addition are the same as when creating
output fields , although a
pushbutton is never displayed as shorter than the text defined for it.
Example ABAP Coding Define and access a
stand-alone selection screen
500 with two pushbuttons in an executable program. An icon and a
quick info text are created for the second pushbutton.
TABLES sscrfields.
SELECTION-SCREEN:
BEGIN OF SCREEN 500 AS WINDOW TITLE title,
PUSHBUTTON 2(10) but1 USER-COMMAND cli1,
PUSHBUTTON 12(30) but2 USER-COMMAND cli2
VISIBLE LENGTH 10,
END OF SCREEN 500.
AT SELECTION-SCREEN.
CASE sscrfields.
WHEN 'CLI1'.
...
WHEN 'CLI2'.
...
ENDCASE.
START-OF-SELECTION.
title = 'Push button'.
but1 = 'Button 1'.
CALL FUNCTION 'ICON_CREATE'
EXPORTING
name = icon_information
text = 'Button 2'
info = 'My quick info'
IMPORTING
RESULT = but2
EXCEPTIONS
OTHERS = 0.
CALL SELECTION-SCREEN '0500' STARTING AT 10 10.
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved