ABAP Keyword Documentation → ABAP - Reference → User Dialogs → Screens → ABAP Statements for Screens
LOOP AT SCREEN
Other versions: 7.31 | 7.40 | 7.54
Syntax
LOOP AT SCREEN INTO wa.
...
ENDLOOP.
Effect
The statements LOOP AT SCREEN ... ENDLOOP define a loop around a statement block. For every screen element of the current dynpro to which a
dynpro field is assigned, one loop pass is executed. wa expects a work area of the data type
SCREEN from ABAP Dictionary. After the statement LOOP, the work area contains the properties of the screen element in question.
When a table control or a
step loop is processed (that is, within a LOOP of the
dynpro flow logic),
the current properties are determined for its screen elements in the current row or group. Outside of
the processing of a table control or step loop, the statically predefined properties of all rows or groups are determined for its screen elements.
Notes
-
The statement
LOOP AT SCREENbehaves like the statementLOOPin a loop across an internal table, where a system table is used instead of an internal table. -
This statement also has an obsolete short form,
which works with an obsolete predefined structure
screen. -
Do not specify the obsolete predefined structure
screenexplicitly afterINTO.
Example