How to update a field without saving in the db

Question

Hello,
I have a page in htmldb with 2 fields (new value, existing value).
This page is used by the user to validate if they want to use the new value or to keep the old one.
I have created a button and a process. When the button is pressed, I would like the field "new value" is updated with the "old value" but only in htmldb. The user should still click on save to change the value in the db.
Can someone tell me what is the attribute and the parameter of the process to do this ?
Thanks in advance
Michael

Answer 1

Hello,
>> I would like the field "new value" is updated with the "old value"
You can do that by attaching a simple JavaScript code to your button (http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10499/bldapp.htm#CIHFEEGH ).
Assuming you have a Pxx_NEW and Pxx_EXIST items, the code should be similar to the following:
<script type="text/javascript">
function copyValue() {
   $x(‘Pxx_NEW’).value = $x(‘Pxx_EXIST’).value;
<script>Of course, for more generic use, you can add parameters to the function.
Hope this helps,
Arie.