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making a small calculation in APEX

647827Nov 29 2010 — edited Dec 18 2012
All,
I am new in APEX and coming from oracle forms world. I have an APEX form where I have 3 fields. 1 of them is text item and other 2 are display only. What I want is when user inputs the value in item1 , it should add item1(text item entered) + item2(display only coming from another page) = item3 (Display item). I have to make sure is user again changes the item1 the value of item3 should again change. I am reading all post where this is done using JavaScript but I have no knowledge of JavaScript. Can someone let me know Where to write this JavaScript (Which item property ??) and what JavaScript to write.

Any help will be appreciated.

Thanks,
Vishal
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Locked on Jan 15 2013
Added on Nov 29 2010
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