Populating List item on condition.

Question

-- I am populating List item based on the Record Group.
i.e: select casenature,to_char(casenaturecode) from casenature.
-- But when i restrict to display associated record with of another field.
i.e : select casenature,to_char(casenaturecode) from casenature
where casenamecode = :cases.case_namecode
-- it does not display any record in the list item
Plz, help me in this regard.
Thanks in advance.

Answer 1

This is a "standard" lookup:
Create a non-database-item in your databaseblock with the datatype and length of the text to be shown (casenature). I assume that there is a casenaturecode-item in your databaseblock which is populated from the database.
Create a POST-QUERY-trigger on your block and read the value from the database:
DECLARE
  CURSOR cr IS
    SELECT CASENATURE
      FROM THETABLE
     WHERE CASENATURECODE=:BLOCK.CASENATURECODE;
BEGIN
  OPEN cr;
  FETCh cr INTO :BLOCK.THE_NEW_TEXT_ITEM;
  CLOSE cr;
END;
-- Mark record as valid
SET_RECORD_PROPERTY(:SYSTEM.TRIGGER_BLOCK, :SYSTEM.TRIGGER_RECORD, STATUS, QUERY_STATUS);Create an Lov conatining both casenaturecode and casenature, set length of casenaturecode to 0, assign the lov to the new textfield and set "Use Lov For Validation"="Yes" for the textfield.