ABAP Keyword Documentation → ABAP − Reference → Program Layout → Modularization Statements → Dialog Modules
MODULE
Other versions: 7.31 | 7.40 | 7.54
Syntax
MODULE mod {OUTPUT|[INPUT]}.
...
ENDMODULE.
Addition
Effect
The statement MODULE defines a
dialog module mod. The
naming conventions apply to the name mod.
The functions of a dialog module mod are implemented between the statements MODULE ad ENDMODULE.
A dialog module is called using the MODULE statement with the same name of the
dynpro flow logic of any ABAP program
dynpro.
Addition
... OUTPUT|[INPUT]
Effect
The additions OUTPUT and INPUT determine whether the dialog module can be called for the
PBO event or for the
PAI event. The addition INPUT
is the default and can therefore also be omitted, although this is not recommended for the readability
of the program. Two dialog modules with the same name can be defined in a program, if one of them has
the addition OUTPUT and the other has the addition INPUT. This is also not recommended for reasons of readability.
Note
For data encapsulation reasons, it is recommended that very few functions are implemented in dialog modules and that procedures are called instead.
Example
PAI module for a dynpro with the dynpro number 100. The PAI module calls an instance method of a dedicated object and does not implement any functions.
MODULE user_command_0100 INPUT.
screen_handler->user_command( ).
ENDMODULE.