Solved: apex_collections - what code goes into which place?

Question

I have been trying to get a simple example app to work, but seem to not understand something about apex_collections? Here is the basis of what I did and how it didn't work for me.
Page 1
Create a new process - new instance, after authentication - once per session or when reset
begin
apex_collection.create_or_truncate_collection(
p_collection_name => 'TEST_KL'
end;
* Add Tab to naviation to page five. Initially start on page 1, then press the Page 5 tab
Page 5
Region 1
contains Submit button
page process - on submit - once per page visit
begin
apex_collection.add_member(
p_collection_name => 'TEST_KL',
p_c001 => 'Test',
p_c002 => 'Test',
p_c003 => 'Test',
p_c004 => 'Test',
p_c005 => 'Test'
end;
region 2
report
sql query
select c001, c002, c003, c004, c005
from apex_collections
where collection_name = 'TEST_KL'
Left the report attributes to default values - c001 displays as c001.
Run the application.
I get the submit button, and the display region for the report with no data found.
Press the submit button.
no change
Press the submit button again.
no change - still see no data found in report region.
I don't get it? What am I doing wrong here?
Thanks, Ken

Answer 1

Ken,
After you have submitted and moved to tab 5, have a look in the database tables:
flows_030000.wwv_flow_collections$
flows_030000.wwv_flow_collection_members$.
In the first table you should see a record that has collection_name = <your collection name>. Take the ID column value and look in the second table. There will be 1 record for each add_member process that tab1 processing performs.
If you can't find any, then the problem lies in the tab 1 processing. If the records do exist then the problem is in the tab 5 process.
Hope this helps
Bryan.