Push button problems

Question

Hi Friends,
We need a pushbutton which when pressed should display a simple message. So we tried using write statement, message statement, SUBMIT ZTEST3 (where ZTEST3 is another program having a simple write statement) AND RETURN and also
IF sscrfields-UCOMM = 'FCODE'.
    set screen 9000.
  endif.
module STATUS_9000 output.
....some more code to display the message
end module.
But NONE of these work. THis means when the push button is pressed, the screen does not change.
Any help or input is greatly appreciated.
Thanks

Answer 1

Seems like a 2 in 1 question.
1. Creating a pushbutton and assigning a function code: I have copied a SAP help text below.
2. Displaying a message: There are several SAP standard function modules that displays/popup text. SE37 and type popup* and pulldown. One example is "POPUP_TO_INFORM".
Here is SAP verbage on pushbuttons:
Variant 10
SELECTION-SCREEN PUSHBUTTON fmt name USER-COMMAND ucom.
Addition: MODIF ID modid.
Effect
Generates a pushbutton on the selection screen. When you define the button, you also define a user command ucom (no inverted commas), up to 20 characters long, which is triggered when the user pushes the button. The rest of the syntax is the same as for SELECTION-SCREEN COMMENT
You can define the name name either statically or at runtime (see also the BEGIN OF BLOCK, COMMENT and SELECTION-SCREEN BEGIN OF SCREEN variants).
When you define a pushbutton, you must always specify a format fmt.
By specifying a Modif ID, you can assign the pushbutton to a modification group.
Notes
The best way of reacting to the pushbutton is in the AT SELECTION-SCREEN event, or, for pushbuttons in the selection include, in the PAI routine (with FNAME = '*' and MARK = SPACE) in the database program SAPDBldb. The field SSCRFIELDS-UCOMM contains the user command ucom. (You need to declare the SSCRFIELDS table using the TABLES statement).
You can create your own pushbuttons in the application toolbar using the FUNCTION KEY n addition.
Within the selectoin include : Additions FOR NODE node ,FOR TABLE dbtab und ID id.
Example
TABLES SSCRFIELDS.
SELECTION-SCREEN PUSHBUTTON /10(20) CHARLY USER-COMMAND ABCD.
INITIALIZATION.
  MOVE 'My text' TO CHARLY.
AT SELECTION-SCREEN.
  IF SSCRFIELDS-UCOMM = 'ABCD'.
  ENDIF.
A pushbutton appears on the selection screen with the text 'My text'. In the AT SELECTION-SCREEN event, the field SSCRFIELDS-UCOMM has the contents ABCD after the button has been pushed.
Hope this helps