Skip to main content

How to disable a calendar button....

By
When you disable a Datepicker field, you can still click the matching image next to that field and doing so will popup the calendar window.

You can easily get this functionality using jQuery:

$(function(){
  $('td.datepicker input:text').each(function(){
     var i=this.id;
     $('#'+i+'_IMG').click(function()
        {return (!document.getElementById(i).disabled);});
  });
});

This function adds a click event to the Calendar image that will only return true - and therefore do something - if the date field is enabled. You can see how this works on apex.oracle.com.

Why doesn't APEX handle this by itself? I really don't know. Maybe they'll copy this solution (or similar) in the next version....
Labels:

Comments

Anonymous said…
Roel,

Setting the field with a read only condition will not only make the field into a display only field but also removes the datepicker icon as well. So the functionality is already in APEX.

This also works for the JQuery datepicker that I have implemented thanks to your input.

Regards,

Jon
2:48 pm
kavitha said…
HI Roels,
I am working for apex development,
2nd point, Add a click event to each datepicker image.
Could u please explain me more detail like where to add it????
12:30 pm
Roel said…
Kavitha,

The function itself adds a click event to the image. You don't have to do anything. Just copy and paste the code in your Page HTML Header (and incorporate jQuery of course).

Roel
12:42 pm
kavitha said…
Hi Roels,
Thanks for your reply.
Please tell me how to incorporate jQuery??.

Thanks
11:20 am
Roel said…
Hi Kavitha,

See this post
11:23 am
kavitha said…
Hi Roels,
Thanks for the link..
the same code, with little change,
$(function(){
$('td.lov input:text').each(function(){
var i=this.id;
$('#'+i+'_IMG').click(function(){return (!document.getElementById(i).disabled);});
});
});

i use for disabling the popup lov but it was not comming.
Please, am i doing anything wrong ?

kavitha
11:11 am
Roel said…
Kavitha,

Check in your "each" function if the right items are selected.
So does i have a (correct) value? And does the IMG item (i+'_IMG') actually exists?
11:58 am
Wolfgang said…
Hi Roels,

do you have a solution that works with APEX 4.0 (4.0.2) too?

Regards,
Wolfgang
4:07 pm
Roel said…
Hi Wolfgang,

The example runs on apex.oracle.com. And that's running apex 4.0.2. So it is working in the latest version of apex.
But in the latest version you probably would use Dynamic Actions to get the same result (without any coding). See the updated example:
Created a (Standard) Dynamic Action on the radio group; if the value = 'Y' (Disable) then Disable the date otherwise enable.
So that's the way you should do it nowadays!

Roel
10:34 am
Post a Comment

Popular posts from this blog

How to create neatly formatted Excel documents using PL/SQL?

By
If there is a requirement to produce output from an application into Excel, you would probably create a CSV (Comma Separated File) with the data and start Excel to show the data - at least that's what I did...until now. The drawback of this solution is that you could only produce data and no nice layout. But Excel is also capable of opening HTML-files and using this you could create Excel files with data and magnificent layout! Let me give an example: 1. Create a procedure to show the data in formatted in an HTML table. CREATE OR REPLACE PROCEDURE display_emp_list IS v_emp_count NUMBER(5); v_empno NUMBER(8); v_ename VARCHAR2(50); v_job emp.job%TYPE; v_sal emp.sal%TYPE; v_bg_color VARCHAR2(10) := ''; CURSOR c_emp IS SELECT empno, initcap(ename), job, sal FROM emp ORDER BY ename; BEGIN SELECT COUNT(*) INTO v_emp_count FROM emp; owa_util.mime_header('application/ms-excel', FALSE); htp.p('Content...
21 comments
Read more

Refresh selected row(s) in an Interactive Grid

By
In my previous post I blogged about pushing changed rows from the dabatase into an Interactive Grid . The use case I'll cover right here is probably more common - and therefore more useful! Until we had the IG, we showed the data in a report (Interactive or Classic). Changes to the data where made by popping up a form page, making changes, saving and refreshing the report upon closing the dialog. Or by clicking an icon / button / link in your report that makes some changes to the data (like changing a status) and ... refresh the report.  That all works fine, but the downsides are: The whole dataset is returned from the server to the client - again and again. And if your pagination size is large, that does lead to more and more network traffic, more interpretation by the browser and more waiting time for the end user. The "current record" might be out of focus after the refresh, especially by larger pagination sizes, as the first rows will be shown. Or (even wors...
Post a Comment
Read more

APEX ReadOnly Pages - The easy way

By
If your Oracle APEX Application requires different types of access - full access or readonly - for different types of users, you can specify a Read Only Condition on Page level (or Region, Item, Button, etc.).  You can set an Authorization Scheme on Application level, so it'll be applied to all pages. So if you have an Authorization Scheme named 'User Can Access Page' defined by a PL/SQL function like this: return apex_authorization.user_can_access_page ( p_app_id  => :APP_ID , p_page_id => :APP_PAGE_ID , p_user    => :APP_USER );  then you can code all the logic in the database using the APEX Repository, your own tables or a combination to define whether a user has access to that page or not. But alas it is not possible to define something similar Application wide for a Read Only condition. You can specify an Authorization Scheme 'User has Read Only Access' using a similar signature as the one above and use that on each and e...
Post a Comment
Read more