Populating the data from table onto drop-down list.

Question

Hi all
The following code i have used in trigger 'when-new-form-instance'
DECLARE
group_id RecordGroup;
list_id Item := Find_Item('Lines.classification');
status NUMBER;
rg_name varchar2(10) := 'rgroup';
BEGIN
clear_list(list_id);
group_id := Find_Group(rg_name);
IF NOT id_null(group_id) then
Delete_Group(group_id);
End if;
group_id := Create_Group_From_Query(rg_name,
'select meaning from lookup_values where lookup_type='TC_CLASSIFICATION' and lookup_code in('BUSINESS','PERSONAL')');
status := Populate_Group(rg_name);
Populate_List(list_id, group_id);
END;
i have created a Record_Group from Object navigator(name:'rg_name').
and used it in the above code.
after this i try to run the form, i am not able to see the value which i drop-down list
can any one suggest me abt this, and any changes i need to do in the property pallet,...
Thanks
Raj

Answer 1

u3 wrote:
No, Populate_List requires that the record group is created at runtime.Actually you're wrong ;)
POPULATE_LIST works with both, record groups created at runtime AND at design time.
Try the below code on SCOTT schema with a list item and a button trigger:
Record Group created at design time
DECLARE
     RG_NAME VARCHAR2(10) := 'RGROUP';
     V_DUMMY NUMBER;
BEGIN
     CLEAR_LIST('LIST_ITEM1');
     V_DUMMY := POPULATE_GROUP(RG_NAME);
     IF V_DUMMY = 0 THEN
          CLEAR_LIST('LIST_ITEM1');
          POPULATE_LIST('LIST_ITEM1', RG_NAME);
     END IF;     
END;
Record group Created at Runtime
DECLARE
     GROUP_ID RECORDGROUP;
     RG_NAME VARCHAR2(10) := 'RGROUP';
     QUERY_TEXT VARCHAR2(1000) := 'SELECT ENAME, TO_CHAR(EMPNO) FROM EMP';
     V_DUMMY NUMBER;
BEGIN
     CLEAR_LIST('LIST_ITEM1');
     GROUP_ID := FIND_GROUP(RG_NAME);
     IF NOT ID_NULL(GROUP_ID) THEN
          DELETE_GROUP(GROUP_ID);
     END IF;
     GROUP_ID := CREATE_GROUP_FROM_QUERY(RG_NAME, QUERY_TEXT);
     CLEAR_LIST('LIST_ITEM1');
     V_DUMMY := POPULATE_GROUP(RG_NAME);
     IF V_DUMMY = 0 THEN
          CLEAR_LIST('LIST_ITEM1');
          POPULATE_LIST('LIST_ITEM1', RG_NAME);
     END IF;     
END;It does work with me both ways, I suggest you test it.
Tony