Dynamic Actions disable button based on the text field

Hello

Sorry if this has already been asked but I checked and could not find a job.

«I'm trying to disable / enable a button "view" among the elements of this region from if a text field has a value or.»  I created a dynamic action for this but its not working only partially.  I can get the button to be disabled or enabled when I leave the text field, but what I'm trying to do is to get the State of button to change as soon as I start to type in the text field or return to people with disabilities if the text is deleted.

I don't know that I'm missing something simple and help you can give is greatly appreciated.

I use APEX 4.1 and that's how I got the dynamic action implementation, I tried different but no event types to give them action I want.

I also install an example (details below)

Event - change

Selection type - point

Article (s) - P1_TEXT

Condition - is null

Real Action

Action - disable

Fires when the result of the event is - real

Fire on the loading of the Page - Y

Items affected - button

Article (s) - P1_BUTTON

Action of false

Action - Enable

Fires when the result of the event is - fake

Fire on the loading of the Page - Y

Items affected - button

Article (s) - P1_BUTTON

workspace - show_issue

user_name - show_issue

password - show_issue

app_id - 61707

http://Apex.Oracle.com/pls/Apex/f?p=61707:1

It works as expected if you change the event of 'Change' for 'key version?

Tags: Database

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