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ABAP Keyword Documentation → ABAP − Reference → User Dialogs → Selection Screens → Create Selection Screens → SELECTION-SCREEN → SELECTION-SCREEN - screen_elements →
SELECTION-SCREEN - MODIF ID
Syntax
... MODIF ID modid ... .
Effect
After the MODIF ID addition, a modid identifier can be specified to assign a screen element of a selection screen to a modification group. The MODIF ID addition can be specified for the following statements:
The name of the modid modification group must be specified directly and must have no more than three characters. When generating a selection screen, modid is entered (for the properties of the screen elements created using the above statement) in the group which is assigned to the component group1 of the structure SCREEN. All screen elements of a group can be modified before displaying the selection screen together with the MODIFY SCREEN statement. Note
Note
The modification groups which are assigned to the group2 and group3 columns of the structure SCREEN, are set by the system when generating a selection screen.
Possible values in group3:
Key | Meaning of the screen element |
BLK | Frame or title of a block |
COF | Output field that uses the FOR FIELD addition to link to a parameter or selection criterion. |
COM | Output field that is not linked to a parameter or a selection criterion. |
HGH | Input field for the upper interval limit of a selection criterion |
ISX | Input field for a parameter that is linked to a search help using the AS SEARCH PATTERN addition. |
LOW | Input field for the lower interval limit of a selection criterion |
OPU | Icon for the selection options of a selection criterion |
PAR | Input field of a parameter |
PBU | Pushbutton |
TAB | Tab title |
TOT | Output field for text before the input field of the upper interval limit of a selection criterion |
TST | Tabstrip |
TXT | Output field for text before the input field of a parameter or the lower interval limit of a selection criteria |
ULI | Horizontal line |
VPU | Pushbutton for multiple selection of a selection criterion |
Example
The elements of the b2 block are assigned to the bl2 modification group. The show_all checkbox enables the option of displaying these elements. The change in the display takes place immediately, since the AT SELECTION-SCREEN event is triggered when the checkbox is selected. The function code is not needed. Instead, the content of show_all is evaluated at PBO.
PARAMETERS show_all AS CHECKBOX USER-COMMAND flag.
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME.
PARAMETERS: p1 TYPE c LENGTH 10,
p2 TYPE c LENGTH 10,
p3 TYPE c LENGTH 10.
SELECTION-SCREEN END OF BLOCK b1.
SELECTION-SCREEN BEGIN OF BLOCK b2 WITH FRAME.
PARAMETERS: p4 TYPE c LENGTH 10 MODIF ID bl2,
p5 TYPE c LENGTH 10 MODIF ID bl2,
p6 TYPE c LENGTH 10 MODIF ID bl2.
SELECTION-SCREEN END OF BLOCK b2.
AT SELECTION-SCREEN OUTPUT.
LOOP AT SCREEN INTO DATA(screen_wa).
IF show_all <> 'X' AND
screen_wa-group1 = 'BL2'.
screen_wa-active = '0'.
ENDIF.
MODIFY SCREEN FROM screen_wa.
ENDLOOP.