Range issue

Question

I am working on a piece of code:
we have a custom table ZVEND_DETAILwhich has the following fields:
1. Vend_num1_From
2. Vend_Num1_To
3. Vend_num2_From
4. Vend_num2_TO
5. Zcode
now the user will enter the above fields on the screen and I need to check what user entered is in this table or not, if not then throw an error.
the input fields for user are:
v_vend_num1
v_vend_num2
zcode
Vend_num1_From  Vend_num2_TO  Vend_num1_From    Vend_num2_To
12              20                    1                     5
10              15                    2                     2
10              10                    1                     1
20              25                    6                     10
so if the user enters any of the above mentioned value, it's a correct value
So basically what I need to see whatever user enters should be validated against this table All the records are unique, I am not able to build this logic, can you please help me on how to start this.
Your help is appreciated.
Rahul
Edited by: goel.rahul2238 on Jun 22, 2011 9:47 PM
Edited by: Rob Burbank on Jun 23, 2011 8:58 AM

Answer 1

Hi
Use the initialization event to build your range tables for your fiuelds.
INITIALIZATION.
  SELECT vendor_num_from INTO TABLE lt_vend_num_fr
                              FROM  zvend_table.
  LOOP AT lt_vend_num_fr INTO ls_vend_num_fr.
    lwr_vend_num_fr-sign   = 'I'.
    lwr_vend_num_fr-option = 'EQ'.
    lwr_vend_num_fr-low    = ls_vend_num_fr-vendor_num_from.
    APPEND lwr_vend_num_fr TO gr_vend_num_fr.
  ENDLOOP.
then use event AT SELECTION_SCREEN ON to do the validation for your values
AT SELECTION-SCREEN ON p_from.
  IF NOT p_from IN gr_vend_num_fr.
*...issue message
  ENDIF.
regards
PrinceIsaac