How do I know the user has clicked the exclusion one item (datagrid) to deselect the item (datagrid) in as3?

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• validate if the user has entered at least one element of the page

  The apex Version: Application Express 4.1.0.00.32
  Web browser: Internet Explorer 8
  Oracle DB: 11g Enterprise Edition Release 11.2.0.1.0
  
  Is there a way to validate whether a user has entered at least one item on a form?
  
  I have a function:
  function hasPageValues return a Boolean value
  is
  Boolean v_item_found: = false;
  Start
  
  for rITM in
  (select nom_element
  of apex_application_page_items
  where application_id = Apex_Application.g_flow_id
  and page_id = Apex_Application.g_flow_step_id
  )
  loop
  -the element's value
  If v (rITM.item_name) is not null then
  v_item_found: = true;
  end if;
  end loop;
  
  Return v_item_found;
  end hasPageValues;
  
  I call this function returning a Boolean in my posting of the page. It doesn't seem to work. It always returns false. What am I missing and is there a better way to do this type of validation. Sorry I'm new to APEX. Thank you very much!

  SmV says:
  Also, I added the part output in the above code and it still does not work. Always returns false.

  When you have a problem in the APEX you can use debug mode to trace what actually demand. It is advisable to include the code of instrumentation in your program units that will generate useful debugging information. To do this, use apex_debug_message API:

  create or replace function hasPageValues (
      p_app_id  in pls_integer
    , p_page_id in pls_integer)
    return boolean
  is
    v_item_found boolean := false;
  begin
  
    for rITM in (
      select
                item_name
              , display_as
      from
                apex_application_page_items
      where
                application_id = p_app_id
      and       page_id = p_page_id)
    loop
      apex_debug_message.log_message(rITM.item_name || ' (' || rITM.display_as || '): ' || v(rITM.item_name));
      -- does the item have a value
      if v(rITM.item_name) is not null
      then
        apex_debug_message.log_message(rITM.item_name || ' is not null: exit.');
        v_item_found := true;
        exit;
      end if;
    end loop;
  
    apex_debug_message.log_message('hasPageValues = ' || case when v_item_found then 'TRUE' when not(v_item_found) then 'FALSE' else null end);
  
    return v_item_found;
  
  end hasPageValues;
  

  Without data in the page, this gives the following debug trace:

  ...
  0.19096     0.00084     Perform custom validations:
  0.19180     0.00081     ...Validation "hasPageValues" - Type: FUNC_BODY_RETURNING_BOOLEAN
  0.19261     0.09948     ...Execute Statement: declare function x return boolean is begin return hasPageValues(:app_id, :app_page_id); return null; end; begin wwv_flow.g_boolean := x; end;
  0.29213     0.00144     P6_PRODUCT_IMAGE (File Browse...):
  0.29352     0.00082     P6_IMAGE (Display Only):
  0.29434     0.00075     P6_PRODUCT_ID (Hidden):
  0.29509     0.00105     P6_PRODUCT_NAME (Text Field):
  0.29614     0.00083     P6_PRODUCT_DESCRIPTION (Textarea):
  0.29697     0.00104     P6_CATEGORY (Radio Group):
  0.29801     0.00151     P6_PRODUCT_AVAIL (Radio Group):
  0.29952     0.00079     P6_LIST_PRICE (Number Field):
  0.30030     0.00071     hasPageValues = FALSE
  0.30102     0.00066     ......Did NOT pass
  0.30168     0.00080     Add error onto error stack
  0.30249     0.00079     ...Error data:
  0.30327     0.00299     ......message: Page has no values
  

  While with a set of element values, we get:

  0.07573     0.00107     Perform custom validations:
  0.07680     0.00094     ...Validation "hasPageValues" - Type: FUNC_BODY_RETURNING_BOOLEAN
  0.07774     0.00231     ...Execute Statement: declare function x return boolean is begin return hasPageValues(:app_id, :app_page_id); return null; end; begin wwv_flow.g_boolean := x; end;
  0.08005     0.00105     P6_PRODUCT_IMAGE (File Browse...):
  0.08109     0.00077     P6_IMAGE (Display Only):
  0.08187     0.00094     P6_PRODUCT_ID (Hidden):
  0.08281     0.00074     P6_PRODUCT_NAME (Text Field):
  0.08354     0.00087     P6_PRODUCT_DESCRIPTION (Textarea):
  0.08442     0.00072     P6_CATEGORY (Radio Group):
  0.08514     0.00067     P6_PRODUCT_AVAIL (Radio Group): Y
  0.08581     0.00112     P6_PRODUCT_AVAIL is not null: exit.
  0.08693     0.00076     hasPageValues = TRUE
  

  The two that appear to be the expected behaviours. What happens when you do this?

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  Can't seem to understand this one. I had assumed it should be fairly easy, but not... I'm quite inexperienced with variables so, maybe someone could help?

  Basically, the case is quite simple: I want a next button to be invisible until a user has clicked on several areas of click on a slide. Each box click click should disclose additional information on a topic. When all topics have been read, I want the nest button to appear.

  Any suggestions on how I could do it with as little effort as possible? Maybe I don't even have to use variables?

  Help much appreciated!

  Rgds,

  Casper

  Here's a forum thread where I introduced myself as a combination of two decisions:

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  An old article in which I have explained how to combine a standard action with a conditional: combining conditional in a fast action and standard

  Slightly different, because there is a sequence (which is not the case for you) and so that a variable is required: Blog after Posterous? - ClickClick - Captivate blog

  Learn more about the possible events to trigger actions: http://blog.lilybiri.com/events-and-advanced-actions

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  I am sure that I am doing the equivalent of Captivate to forget to wear one, but I'm unfortunately stuck. Thanks for any help you can give me!

  Krista

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  I have different tabs on the main page as Abc, Def, home, etc... On each page there are SQL queries based on a variable binding. This binding variable value is given by a selectonechoice component which is present above all the tabs. Now when I change the value in the tab component selectonechoice inside components fires and display the updated data. I'm releasing components integrated into the tabs using contextual events. Everything works fine, but when I changed the value of the component of selectonechoice all events fire and all the tabs of SQL queries are run and it takes so long for data update (a big performance issue). I thought that if I know the tab selected, I trigger the contextual events in this tab. Can someone help me how do I know the tab selected in webcenter spaces. I know in adf we have disclosureListener for help that we know of the selected tab. But in Webcenter spaces the sideBarItem (who resembles showDetailItem ADF) is not disclosureListener. How to overcome this problem? Can someone help me.

  Thank you

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  --------------------------------------------

  (1) activation of the workflow

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  --------------------------------------------

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  (I'm not 100% 2) or 3) may be your solution. Try them in any case and let us know the feedback.

  If you get STUCK in one of the solutions, I'll try to help you.

  In the meantime, I'll thing if there is nothing simpler.

  Kind regards.

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