How to capture input values in the selection screen?

Use the function module RS_REFRESH_FROM_SELECTOPTIONS to capture the values entered by the user in the selection screen. This FM will return the input values in the selection screen to a selection table. Selection table has the structure RSPARAMS:

SELNAME = Name of selection criterion

KIND = Type of selection (parameter or select-option)

SIGN = ‘I’ (Inclusive) or ‘E’ (Exclusive)

OPTION = e.g. ‘BT’, ‘EQ’, ‘LE’.

LOW = Lower limit

HIGH = Upper limit

*&---------------------------------------------------------------------*

*& Data Declaration

*&---------------------------------------------------------------------*

TABLES: mara.

DATA:gt_params TYPE TABLE OF rsparams.

DATA:gwa_params TYPE rsparams.

*&---------------------------------------------------------------------*

*& Selection Screen

*&---------------------------------------------------------------------*

SELECT-OPTIONS:s_matnr FOR mara-matnr.

PARAMETERS:p_mtart TYPE mara-mtart.

PARAMETERS:p_matkl TYPE mara-matkl.

*&---------------------------------------------------------------------*

*& Start of Selection

*&---------------------------------------------------------------------*

START-OF-SELECTION.

CALL FUNCTION 'RS_REFRESH_FROM_SELECTOPTIONS'

EXPORTING

curr_report = sy-repid

TABLES

selection_table = gt_params[].

SORT gt_params BY kind.

WRITE:/ 'Parameters'.

WRITE:/ 'Name' ,20 'Value' .

LOOP AT gt_params INTO gwa_params WHERE kind = 'P'.

WRITE:/ gwa_params-selname ,20 gwa_params-low.

ENDLOOP.

skip.

WRITE:/ 'Select-Options'.

WRITE:/ 'Name' ,20 'Sign' ,25 'Option',32 'Low',52 'High'.

LOOP AT gt_params INTO gwa_params WHERE kind = 'S'.

WRITE:/ gwa_params-selname ,20 gwa_params-sign ,

25 gwa_params-option, 32 gwa_params-low,

52 gwa_params-high.

ENDLOOP.

Selection Screen

Output