Conversion Exits

Question

Hi all
In my report program, i am calling a conversion exit dynamically(i.e) the name of the conversion exit for a particular data type is generated accordingly.
The data is converted by the conversion exit to the specified format( i used MATNR)
for a value 3 it converted to 000000000000000003 (which is the proper format for MATNR).
but still i am not able to fetch values on the basis of this.
But if in my select option i pass the value of MATNR as 000000000000000003 directly, the correct data is fetched.
Note: For all other fields (such as ebeln, correct data is fetched, so it rules out any problems with the select query)
Plz help.
Thanks & Regards
Ravish Garg

Answer 1

<b>* select statement to get the conversion exit name for the field *</b>
  select convexit
    into varconv_exit
    from  dd01l
    where domname = vardomname.
  endselect.
<b>
if conversion exit found for a field *</b>
    concatenate 'CONVERSION_EXIT_'
                varconv_exit
                '_INPUT'
                into
                varconv_exit.
    perform f_conversion_exit
                          using p_table
                                p_field
                                varconv_exit:
                         changing s_range-low,
                                  s_range-high.
<b>&----
*&      Form  f_conversion_exit
      text
     <--P_S_RANGE_LOW  text
     <--P_S_RANGE_HIGH  text
----</b>
form f_conversion_exit  using p_tabname
                              p_fname
                              p_convexit
                        changing p_value1.
  call function p_convexit
  exporting
      input        = p_value1
      importing
      output       = p_value1
    exceptions
      length_error = 1
      others       = 2.
  if sy-subrc <> 0.
    message id sy-msgid type sy-msgty number sy-msgno
            with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  endif.
endform.                    " f_conversion_exit
<b>&----
*&      Form  get_data
      text
-->  p1        text
<--  p2        text
form get_data .</b>
select * into corresponding fields of table <dyn_table>
             from (p_table) where (it_where) .
  if sy-dbcnt = 0.
    write :/  'No Data matching Your Criteria!'.
    leave program.
  endif.
endform.                    " get_data
When i put matnr in the filed name and a value for it,
it gets the right conversion exit name : "CONVERSION_EXIT_MATN1_INPUT" for matnr.