Dynamic field population problem

Question

All,
I have a form with several drop downs populated by dynamic methods. These methods retrieve data from an Oracle DB. Four of the drop downs allow the user to select a value for each field and based on these selections, I have a 5th drop down that should populate with a value derived from the other four selections. So we have field 1: value 1, field 2:value 2, field 3:value 3, and field 4:value 4. Field 5 should return a set of values based on the values of fields 1 through 4 being equal to the corresponding values in the database. However the query returns empty. Here is the SQL from Studio. Anyone have an idea why this is returning an empty record set?
Field5 as String[]
for each element in
SELECT Value5 from OracleDB.BPM.FOO
WHERE OracleDB.BPM.FOO.value1 = Form.value1 and OracleDB.BPM.FOO.value2 = Form.value2 and OracleDB.BPM.FOO.value3 = Form.value3 and OracleDB.BPM.FOO.value4 = Form.value4
do
     Field5[] = String(element.Value5)
end
return Field5
TIA,
IGS

Answer 1

Hi Ian,
Here are a few things to check:
1. Are you sure your logic is getting run once all 4 of the other fields have been selected? Put a logMessage statement at the top and bottom along with a logMessage statement that shows the values in your array.
2. Do you have your method set for attribute 5 to have its valid values populated dynamically using the method you have written?
3. When you change each of the 4 other attributes, do you have the changed field invoke a method (using the changed field's "On change invoke property) with the logic:
{code}refreshValidValues("value5"){code}
4. In the above method, did you leave in the double quotes surrounding the attrirbute's name?
{code}// this will not work
refreshValidValues(value5)
// this will work
refreshValidValues("value5"){code}
Hope this helps,
Dan