Oracle Apex conditional field display

Question

Hi,
I have created two page wizard in Oracle Apex.
I have item and item_detail table. For item1, I have one detail record and for item2, I have two detail record.
On Step 1: Choose item which will be drop down from item table.
On Step 2: Based on item detail record count, I want to display text fields on step 2. If item1 is selected in step 1 thenl display, textdisplay1 and textfield1 in step2. If item2 is selected step ` will display textdisplay1, textfield1, textdisplay2, textfield2 in step2.
sql/pl/sql condition will be: select count(*) from item_detail where item_id in (select item_id from item where item_name='one provided in step 1'
I want this dynamic ability to display fields or atleast to hide textdisplay2,textfield2 based on sql/plsql condition.
Thanks,

Answer 1

984019,
How are you coming with this?
Since I'm a newbie, here's how I'd try to approach this.
1) So we have the Selection List, say, :P1_SList
2) Then I'd create a Dynamic Action (DA) triggered on a change to :P1_SList.
3) The DA would have a PL/SQL procedure in the DA that computed (:P1_Disaplay_Number) 1 for text1, 2 for text2, ...
4) Then I'd have a display Condition -- a PL/SQL Function Body Returning a Boolean -- on each item (text1, text2, ...), something like, say for text3, ...
BEGIN
          IF :P1_Display_Number <= 3 THEN
               RETURN TRUE;
           ELSE
               RETURN FALSE;
            END IF;
END;And so forth -- I hope my syntax is correct! So the item Condition determines whether the item displays.
5) You could set :P1_Display_Number to 0 initially, so no items display until the selection is made and the DA triggered.
(I hope you don't have more than 10-15 of these text1 ... text15.)
Is what I have described what you are trying to achieve?
Best regards,
Howard