Clearing of selections screen

Question

Hi!
I wanted to asked how to clear a first screen of selections screen ( contains Parameters ans select options )  from another scrren ?
I created an ALV report. The first screen of the report is a selections screen that contains select options and Parameters. The Alv was created by Object oriented method (not by the function 'reuse_alv_*' ) in
a second screen. I want from the second screen on certain circumstances to leave the alv screen and to set the first screen ( that contains select options and Parameters ), however when i call the first screen i want to clear all select options and parameters, and my question is how to clear all select options and parameters before i leave to the first screen ?
thanks
moshe

Answer 1

Hi Moshe
Just I said in my answer you can't do a CLEAR statament in that point of your code, because the system manages the return of old data in selection screen.
The system do what importing old data from ABAP MEMORY in the event INITIALIZATION, so or you clear the ABAP MEMORY or you clear the selection-screen in the event AT SELECTION-SCREEN OUTPUT.
You can try this:
IF g_it_d_data[] IS INITIAL.
CALL FUNCTION 'POPUP_FOR_INTERACTION'
EXPORTING
headline = text-011 " 'Information'
text1 = text-010
ticon = 'I' " 'No data was found for
" the selection criteria.'
button_1 = 'OK'.
here i need to clear parameters and selects option
before leaving to screen 0
FREE MEMORY.
LEAVE TO SCREEN 0.
ENDIF.
or you place FREE MEMORY statament in INITIALIZATION.
INITIALIZATION.
FREE MEMORY.
You can try to use CLEAR and REFRESH statament in AT SELECTION-SCREEN OUTPUT.
AT SELECTION-SCREEN OUTPUT.
Only first time
CHECK FL_FIRST = SPACE.
FL_FIRST = 'X'.
REFRESH <SELECT-OPTION>.
CLEAR <PARAMETERS>.
Max