Dynamic action to change item label

Hi All,
How can I use dynamic action to change item label?
thanks.

Hi,
fac586 wrote:
Why and when do you want to dynamically change a label? This would have a detrimental effect on usability and accessibility.
Consider a visually impaired user of your app using a screen reader. The screen reader identifies a checkbox labelled "Free Cake". They like the sound of that, so navigate to the checkbox to tick it. Your dynamic action fires when it gets focus and changes the label to "Give all my money to Fadi".I think this would confuse even a sighted user! I don't know the OP full requirements or constraints but I can bet the OP does not want to change the item label when the user navigates to it.
I have to say that I don't like forms that change as the user enters data. I think that enabling and disabling fields is OK, but not hiding or showing or changing labels or field types.
In any case, if you have to do it, an alternative to changing an item label is to have 2 separate items: one hidden and one shown. Then, using some triggering event, you can hide one and show the other.
Because there are built-in dynamic actions to hide and show items but not to change item labels, one might thing that one approach is more acceptable than the other. However, if those 2 separate items occupy the same spot in the page, from a user point of view (or screen reader for that matter) I don't see any difference between those two approaches (in my view, both bad practices.)
And because of its lots of nested tables, lack of headings etc, apex pages are not screen-reader friendly anyway... This is an interesting plugin for firefox that shows how your page would be read by a screen reader:
http://www.standards-schmandards.com/projects/fangs/
fac586 wrote:
You can use an "execute javascript" dynamic action type to do it.Yes, you can. But should you?I don't know. As I mentioned above, I don't like the idea. However, as I also mentioned above, I don't know anything about the OP constraints or requirements.

Similar Messages

Dynamic Action On change tabular form question

Hi guys!
I've wanted to add dynamic action on change (tabular form) to execute PL/SQL which checks if column of the tabular form has changed and if yes it changes walue of text field to Y or N. It doesnt work...and I don't know why. If I create validation with this PL/SQL it works. Can you help?
DA:
On change - Tabular Form
PL/SQL;
DECLARE
   nazwa     VARCHAR2(4000);
   counter   NUMBER := 0;
BEGIN
   FOR i IN 1 .. apex_application.g_f08.COUNT
   LOOP
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      END IF;
   END LOOP;
   IF counter > 0 THEN
   :P5_IS_TABULAR_FORM_CHANGED := 'Y';
   ELSE
    :P5_IS_TABULAR_FORM_CHANGED := 'N';
END IF;
END;Page items to submit: P5_IS_TABULAR_FORM_CHANGE
What's wrong?
With regards,
PsmakR

Region static id shouldn be in bracketsYou missed the '#' informt of the region id.
why my original PL/SQL process did not work
FOR i IN 1 .. apex_application.g_f08.COUNTThis works only when the application array has values and that happens only when the page is submitted.When you submit the dynamic action , it isn't.
This script combined with script to detect changes makes apex page running very slowIf you use that PLSQL code(assuming it works as expected) , then its going to take a server request every-time you change a field in the tabular form and loop though all the array values(if they would be submitted before) and recalculate and compare the checksums . Isn't that going to be very inefficient.
As for that JS code, it only runs at the client side. You can do all the server side checks on submit, when the user expects some delay due to processing.

Change item Label based on Another item's value

Hi guys,
I need to set an item label (A) based on the value of another item (B). I did the following:
I Created a dynamic action.
When B changes:
1- submit the value of B
2- Refresh item A
The label of the item A is : myitem &B.
Any ideas ????
Best Regards,
Fateh

Fateh wrote:
Ok... Thanks a lot... but before closing the thread and for better understanding.
I put this code on Execute when Page Loads:
$("#P1_A").change(function(){
if($v(this)=="Rent"){
$('#mylabel > label > span').text('Is it for Sale also');
}else{
$('#mylabel > label > span').text('Is it for Rent also');
}However, the label does not change. Any ideas why this is not working????
Regards,
Fateh
$v(this)
you are mixing jquery and apex API, it won't work
and missing *});* at the end, and when adding to the page load you should wrap them in $(document).ready( code here.... });
$(document).ready(function () {
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          if ($(this).val() == "Rent") {
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          } else {
               $('#mylabel > label > span').text('Is it for Rent also');
});

Issue in execution of Dynamic action on change event

Hi,
Greetings.
I have scenario, where I have one select list (P_CATEGORY) and one shuttle control (P_ROOMS) on page.
The values of the shuttle list is being populated based on the selected value in select list.
The left pane of shuttle control's value based on LOV and source of the shuttle item is a plsql function, which returning colon separated value list.
So that returned values shown in the right pane of shuttle.
The LOV values are getting being populated using cascading LOV i.e based on the of Select List item. But the Shuttle source values not getting auto refresh and for achieving that I've created a dynamic true action on change event of Select list.
The dynamic action is with :
Action : Set Value
Set Type : PL SQL funciton body
Page items to submit : P_CATEGORY (this is select list)
Escape Special Character : Yes
Suppress Change event : Yes
Affected Elements -
Selection type : Item(s)
Item(s) : P_ROOMS
This is perfectly working on Firefox but not working on IE9 & Google Chrome.
I've debugged in both IE9 & Google chrome and found the dynamic action get executes ajax call and the values get back but not rendering on the screen. i.e not assigning to the item.
So can you please advice me what will be a workaround for this issue?
I am using Application Express 4.1.0.00.32 .
I'll appreciate your prompt response.
Thanks & Regards,
Jaydipsinh Raulji

I don't understand why this is not working withouth seeing an example, there might be multiple processes working on the item.
Anyway if the value is returned check if the value is in the session aswell. If it is in the session but not on the page that means you will need to find a way to bring it from the DB to the page. You can do this by adding an action to your DA:
Action: Execute PL/SQL code
PL/SQL code: NULL;
Page Items to Return: your shuttle item

Dynamic Action on apex items

Hi,
I have a requirement like after entering the date of birth in the item. then age value should be set dynamically.
how can i set the value?

Hi Tulasi,
Follow the below steps
Click on create button-Dynamic action
select Advanced type
Give some name
event - On change
selection type - item
item(s) - your page item(used to select date of birth)
condition - no condition
action - Execute PL/SQL code
Fire on page load - blank
PL/SQL code -
declare
v_age varchar2(100);
v_dob date;
v_sysdate date;
begin
select sysdate into v_sysdate from dual;
v_dob := :P1_DOB; //here P1_dob is a page item from where i am selecting date of birth.
select trunc(to_char((v_sysdate - v_dob)/365)) into v_age from dual;
:P1_AGE := v_age; // i have created one item named P1_AGE to display the calculated age.
end;Page Items to Submit = P1_DOB // replace with your datepicker page item
Page Items to Return = P1_AGE // replace with your item.
Hope this will give you some idea.
Thanks and Regards,
Jitendra

Dynamic Action on change automatically submit

Hi,
I have a tabular form (manually handled) with a text item that can be changed (Apex 4.0.2.00.07).
Each time the user changes the value of the text item, the changes automatically will be submitted.
Therefore I defined a dynamic action:
event:onchange
selection type: region
with javascriptcode: apex.submit({request:'SAVE'});
When I leave changed text item with tab-key everything works fine.
But when I leave changed text item through a button Click only the submit of dynamic action is performed and the button functionality is ignored.
The button click initiates the onchange event at the changed text item and then ignores everything after this event.
The enduser will not be able to understand the behavior of the application.
I have less experience in Java and JavaScript.
Is it possible to get the information if and which button was clicked, so I can decide at javascriptcode of the dynamic action what is to do?
Thanks,
Brigitte

Region static id shouldn be in bracketsYou missed the '#' informt of the region id.
why my original PL/SQL process did not work
FOR i IN 1 .. apex_application.g_f08.COUNTThis works only when the application array has values and that happens only when the page is submitted.When you submit the dynamic action , it isn't.
This script combined with script to detect changes makes apex page running very slowIf you use that PLSQL code(assuming it works as expected) , then its going to take a server request every-time you change a field in the tabular form and loop though all the array values(if they would be submitted before) and recalculate and compare the checksums . Isn't that going to be very inefficient.
As for that JS code, it only runs at the client side. You can do all the server side checks on submit, when the user expects some delay due to processing.

Dynamic action on "Change" of Radio group value

Hi,
I'm using Apex 4.1 on XE 11G.
If I create a simple dynamic action which shows/hides a field on the change of an item of type select list this works great.
So for example if the value of the select list is 1 then show another field and otherwise hide this other field.
If I change the type of the first field ( the select list ) to a radio group the dynamic action stops working. It looks like the value of the radio group does not get changed when I click another value in the radio group.
I'm somehow able to bypass this by using a dynamic action which fires when the radio group is clicked and then evaluatie it's value via JS, but that's not really the ideal solution.
Is there some basic difference in radio groups and select lists when it comes to storing values and/or dynamic actions which are based on the change event on that item ?
Regards
Bas
Edited by: Bas de Klerk on 31-mei-2012 6:42

Take a look at the Radio group item in HTML DOM using FF/Firebug or IE/DevTools, and you will see the difference.
If you have neither of the 2 debug tools , time you get one.
Regards,

Folder action to change the label of the folder

Hi all
I would like to use Automator/Folder Actions to set the Label of the folder to show that it contains a file that was created or modified as follows:
Red if in the last three days,
Orange if over three days but less than seven; and
Yellow if over seven days but less than fourteen
Oh, and clear the folder label if the contents of the folder are over fourteen days old.
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Jai
iMac G5; iBook G3; PB165c; PB170; Mac IIcx; Mac SE/30; Mac SE; Mac Plus; Newton 130; 2gen iPod 10G Mac OS X (10.4.7) MacUser since 1984... and waiting for a tablet (like the Nokia 770 with MacOSX)

In Automator-No
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You could probably get close to what you want using Smart Folders. It won't be color-coded or perfect though because modifying a file doesn't always reflect on the modification date of the folder. And parent folders are not affected by changes made in sub-folders.

Change Item label color

I am adding items to the sidebar region. The item labels are showing as black. I need to have them show as white. Is there something I can change in the item attributes to do this or does this need to be done in the template?

Hello,
style="color:#f00;font-weight:bold;"Since it sounds like you are just learning some CSS I suggest you spend an hour or two reading this site [http://www.w3schools.com/css/] it will save you countless hours later.
Regards,
Carl
blog : [http://carlback.blogspot.com/]
apex examples : [http://apex.oracle.com/pls/otn/f?p=11933:5]

Help using a dynamic action to update tabular form items (specifically radio button) based on collection

Hi Everyone, I have posted this question in the past and made huge progress with Denes Kubicek's help: https://apex.oracle.com/pls/apex/f?p=31517:294:115851992029365::::: based on my earlier question posted: https://forums.oracle.com/forums/thread.jspa?threadID=2537494
I am struggling with one item in my tabular form. It is a radio button. The choices all appear properly, but the value is not saved in the collection (and hence, not saved in the table). All other items in the tabular form save properly.
here is what I have for the query.   It is item c024 (which maps to ;'f03'), which is defined as a radio LOV based on an existing LOV.
Currently I have:
2 page items:
P110_ID
P110_VALUE
Dynamic action called CHANGE COLUMN:
event: CHANGE
selection type: jQUERY Selector
jQuery:
jQuery Select = input[name='f03'],select[name'f08'],select[name='f09'],input[name='f10'],input[name='f11'],input[name='f12'],select[name='f40'],input[name='f21'],input[name='f22'],input[name='f23'],input[name='f50']
event scope: Dynamic
true action#1: set value P110_ID javascript expression this.triggeringElement.id
true action#2: set value P110_VALUE javascript expression this.triggeringElement.value
true action#3: execute pl/sql code
declare
v_member number;
v_seq number;
begin
v_member := TO_NUMBER (SUBSTR (:p110_id, 2, 2));
select ltrim(substr(:p110_ID,5,4),'0') into v_seq from dual;
safis_collections.update_column(v_seq,
                                v_member,
                                :p110_value);
true ation#4 refresh region :LANDINGS_COLLECTION
the tabular form is based on the query:
SELECT
apex_item.text(1,seq_id,'','','id="f01_'||seq_id,'','') "DeleteRow",
seq_id,
seq_id display_seq_id,
apex_item.text_from_LOV(c004,'SPECIES')||'-'||apex_item.text_from_LOV(c005,'GRADE')||'-'||apex_item.text_from_LOV(c006,'MARKETCODE')||'-'||apex_item.text_from_LOV_query(c007,'select unit_of_measure d, unit_of_measure r from species_qc') unit,
apex_item.select_list_from_LOV(8,c008,'DISPOSITIONS','onchange="getAllDisposition('||seq_id||')"','YES','0',' -- Select Favorite -- ','f08_'||seq_id,'') Disposition,
apex_item.select_list_from_LOV(9,c009,'GEARS','style="background-color:#FBEC5D; "onFocus="checkGearPreviousFocus('||seq_id||');"onchange="getAllGears('||seq_id||')"','YES','3333','-- Select Favorite --','f09_'||seq_id,'') Gear,
apex_item.text(10,TO_NUMBER(c010),5,null, 'onchange="setTotal('||seq_id||')"','f10_'||seq_id,'') Quantity,
apex_item.text(11,TO_NUMBER(c011),5,null,'onchange="getPriceBoundaries('||seq_id||')"','f11_'||seq_id,'') Price,
apex_item.text(12, TO_NUMBER(c012),5,null, 'onchange="changePrice
('||seq_id||')" onKeyDown="selectDollarsFocus('||seq_id||',event);"','f12_'||seq_id,'') Dollars,
decode(c013,'Y',apex_item.text(14, c014,30,null,'style="background-color:#FBEC5D;" onClick="onFocusAreaFished('||seq_id||');"','f14_'||seq_id,''),'N','N/A') Area_Fished,
decode(c017,'Y',apex_item.text(18, c018,4,null,'style="background-color:#FBEC5D; "onBlur="setUnitQuantity('||seq_id||')"','f18_'||seq_id,''),'N','N/A') UNIT_QUANTITY,
decode(c017,'Y',apex_item.text(19,'CN',3,null,'readOnly=readOnly;','f19_'||seq_id,''),'N','N/A') UNIT_COUNT,
c024 hms_flag,
decode(c050,'Y',apex_item.checkbox(21,'Y','id="f21_'||seq_id||'" style="background-color:#FBEC5D; " onClick="alterYes('||seq_id||');" onKeyPress="alterYes('||seq_id||');"',c021),'N','N/A') FinsAttached,
decode(c050,'Y',apex_item.checkbox(22,'N','id="f22_'||seq_id||'" style="background-color:#FBEC5D;" onClick="alterNo('||seq_id||');" onKeyPress="alterNo('||seq_id||');"',c022),'N','N/A') FinsNotAttached,
decode(c050,'Y',apex_item.checkbox(23,'U','id="f23_'||seq_id||'" style="background-color:#FBEC5D;" onClick="alterUnk('||seq_id||');" onKeyPress="alterUnk('||seq_id||');"',c023),'N','N/A') FinsUnknown,
decode(c050,'Y',apex_item.textarea(28,c028,3,null,null,'f28_'||seq_id,''),'N','N/A') Explanation,
decode(c024,'N',apex_item.select_list_from_LOV(29,c029,'HMSNATURE','onchange="saveNature('||seq_id||')"','YES','A','-- Select Nature of Sale --','f29_'||seq_id,''),'U',apex_item.select_list_from_LOV(29,c029,'HMSNATURE','onchange="saveNature('||seq_id||')"','YES','A','-- Select Nature of Sale --','f29_'||seq_id,''),'Y','N/A') Nature_Of_Sale,
decode(c020,'Y',
apex_item.select_list_from_LOV(40,c040,'HMS_AREA_CODE','style="background-color:#FBEC5D;"',null,null,null,'f40_'||seq_id,''),
'N','N/A') HMS_AREA_CODE,
c020,c050,
decode(c020,'Y',
apex_item.text(41,TO_NUMBER(c041),5,null,null,'f41_'||seq_id,''),
'N','N/A') Sale_Price
from apex_collections
where collection_name = 'SPECIES_COLLECTION' order by seq_id
I have noticed the following:
when I change column C011 (price) the following values are set in the dynamic action:
P110_ID = f11_1
P110_VALUE = whatever I change the price to.
when I change the column C024 (hms_flag), the following values are set:
P110_ID = f03_0001
P110_VALUE = whatever I change hms_flag to.
the region is refreshed in my dynamic action, and the change for hms_flag does not hold. I have tested the SQL query that generates the value for v_SEQ in the dynamic action.   In both a change to price and HMS_FLAG it appears valid
select ltrim(substr(:p110_ID,5,4),'0') into v_seq from dual;
if f11_1, v_seq:= 1
if f03_0001, v_seq := 1
thank you!

solved. sort of.
field c024 references f03.
the Dynamic ACtion, step 4 calculates v_member by taking a substring of P110_ID...and in all other fields, the column and the field (fxx) are the same value....except for c024.
I am not certain exactly how to resolve, but see the problem.

Unable to create a dynamic action ALERT to be generated on a Select List when particular value is selected.

Hi everyone, this should be so easy, yet I am stuck.
I have a form region with an item P110_VESSEL_ID. This item is a select list. It is based on the query:
select distinct v.vessel_name, v.vessel_id
from vessels vessels v, frequent_fishermen ff
where ff.dea_permit_id = :G_PERMIT_ID and
ff:vessel_id = v.vessel_id
UNION
select v.vessel_name, v.vessel_id
from apex_collections a, vessels v
where collection_name = 'SUPVES_COLLECTION' and
a.c002 = v.vessel_id
If the user decides against the values in the select list query, they may opt to SELECT ALL VALUES. This SELECT ALL VALUES is a POST ELEMENT TEXT on P110_VESSEL_ID.
<a id="popVessels" href="#"><font color=blue>Select from ALL Vessels</a>
This all works fine.
The issue is that when the user selects a vessel name = 'UNKNOWN' and it's corresponding vessel_id value, I would like an ALERT to appear indicating that they should double check that the vessel is UNKNOWN and not that the is no vessel.
I created a dynamic action
event= change
select type = item
item = P110_VESSEL_ID
True ACtion #1 is the ALERT.
I currently have no other logic, but cannot even get this to work. Any thoughts. I have also tried the SELECT TYPE = jQuery Selector = select[name='P110_VESSEL_ID'] but that does not work either (though I am not certain if the value should be P110_VESSEL_ID or the static name of VESSEL_ID).
Any help is appreciated.
ps. the page is not submitted when the vessel is changed. There is other data that needs to be entered both in this region and others and many validations run when submit, so the submit would not be an option.
thanks again,
Karen

KarenH,
KarenH wrote:
I created a dynamic action
event= change
select type = item
item = P110_VESSEL_ID
True ACtion #1 is the ALERT.
This should work. Sometimes I've see where there is other javascript on the page that may have some errors and is causing the dynamic action code to not be executed. Use your favorite browser script console to try and determine if this may be the case.
--Jeff
P.S. Your jQuery selector can be: select#P110_VESSEL_ID

Set value in tabular form field with dynamic action

Hi Guys,
I have a dummy field in a tabular form which I am trying to use to populate another field in the tabular form when it is changed.
In the tabular form I have an ITEM_ID field. Each item_id has an ITEM_NAME which is the dummy field as it is not a field in the database table.
When the user enters an item name, I would like something like a dynamic action to fire, populating the ITEM_ID.
e.g User enters part no ABC into the dummy field. When they tab out, I want the value to the item_id field on the tabular form row to be populated based on a SQL query in a similar fashion to how it can be done with dynamic actions on text items on a form.
I am using APEX v4.0.0
Thanks in advance
Chris

Hello Chris,
Why can't you use Select List Item on tabular form, which will display all item_names and return item_ids?
If the list is huge and you need users to type & search, then you can use Pop-up LOV item.
Regards,
Hari

Execute javascript from plsql in a dynamic action.

Is it possible to execute javascript with htp.p from a plsql block in a dynamic action (on change).
I have tried it but I get a JSON error.
The reason I want to to this is:
I have to check something with plsql and depending on the result I want to do something in javascript.
I now going to try it with ajax from javascript, but if somebody has a other way to do this i like to hear it.
Thanks,
Fred.

Very neat, many thanks.
I now have a 'Set Value' 'Javascript Expression' action of 'this.triggeringElement.id;' to set a hidden *but unprotected* page item. This is followed by the 'Execute PL/SQL' action which simply calls a package procedure and passes the name of the triggering item. The procedure then sets the session state(s) as required.
Thank you!

DYNAMIC ACTION - Javascript Expression checkbox

Hello
I have 2 items
1.     P2_REQUEST_TYPE_CODE
a.     SELECT LIST
i.     EQUIPMENT REV
ii.     POSTER
iii.     ROOM SHELL
iv.     VISIO TO CAD
2.     P2_RETURNED_FILE_TYPE_CODE
a.     CHECKBOX
i.     2D POSTER
ii.     CAD DRAWING
iii.     PDF
iv.     VISIO
I Have a Dynamic Action
Event: Change
Selection Type : Item(s)
Item(s): P2_RETURNED_FILE_TYPE_CODE,P2_REQUEST_TYPE_CODE
Condition: JavsScript Expression
Value:
$v('P2_RETURNED_FILE_TYPE_CODE')=='2D POSTER'||
$v('P2_REQUEST_TYPE_CODE')=='POSTER'
When my user chooses “P2_REQUEST_TYPE_CODE (“POSTER” )”it needs to displays Address Columns and it does. When my user chooses “P2_RETURNED_FILE_TYPE_CODE (“2D POSTER”)” It needs to display address Columns and it does. Everything works fine except when in “P2_RETURNED_FILE_TYPE_CODE” all checkboxes are checked the address columns don’t get display, any idea?
Application Express 4.1.1.00.23
Thanks
-JC

Hi JC,
If you check multiply checkboxes the value will be a string with the value separated by a colon.
You shoudl use something like indexOf.
$v('P2_RETURNED_FILE_TYPE_CODE')=='2D POSTER'||
$v('P2_REQUEST_TYPE_CODE').indexOf('POSTER') != -1Regards,
Kees Vlek
http://www.orcado.nl
http://www.orcado.nl/blog/blogger/listings/69-kvlek
If the question is answered please change it to answered.

Help with Dynamic Action Construction

I want to create a dynamic action that will disable a field called P1_TBRN when any of the following conditions in the form are true:
:P1_TRIAL_STATUS in ('Off-Trial','Unknown') or
:P1_DIAGNOSIS_MAJOR ='UNKNOWN' or
:P1_INSTITUTION ='Unknown' or
:P1_CONSENT_EXISTS <> 'Y';
I assume I use a "Change" event but I can't work out how to enter the 4 condtions so that they are all checked each time. If I create 4 separate dynamic actions, when I change one of the fields, it does not take into consideration the other field values.
An alternative I've tried is to set up a Read Only condition on P1_TRIAL with the above condition. The only problem is that I have to submit the page each time there is a change in one of the 4 fields above. It would be better if I didn't have to submit the page each time so I'd like to use a Dynamic Action.
thanks in advance
Paul P

Hi Paul.
If you want to evaluate 4 variables in 1 dynamic action you have to post the value of these 4 items on each change of one of these items as far as I know.
I had a form with multiple checks of this kind and ended up having serieus performance issues.
My way around was to evaluate in javascript. You creat a dynamic action on change of any of these 4 fields and set the condition to a javascript expression. The expression looks something like (quick edit so there might be some typos):
$v('P1_TRIAL_STATUS')=='Off-Trial'||
$v('P1_TRIAL_STATUS')=='Unknown')||
$v('P1_DIAGNOSIS_MAJOR')=='UNKNOWN'||
$v('P1_INSTITUTION') =='Unknown'||
$v('P1_CONSENT_EXISTS') == 'Y'
If this evaluates to true the true action of the dynamic action is executed, otherwise the false action.
Cheers
Bas

Dynamic action to change item label

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