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https://issues.jboss.org/browse/RF-10227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12813809#comment-12813809
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Lukáš Fryč commented on RF-10227:
---------------------------------

1) Event update allows to intercept autocompletion and read a list of available 
suggestions

2) Some counter-examples for not showing {{There are no suggestions}}: Google 
autocomplete, autocompletion built into browsers.

3) The other problem is that Autocomplete doesn't indicate whether suggestion 
mechanism is in progress, fortunately you can use r:status to show progress to 
an user. It is then evident from the status, that when there are no suggestions 
after completion, nothing is available.

Just to clarify, I'm not saying we shouldn't implement it, just brain-storming 
possible options. ;-)

Note that we will need this functionality for RF5 r:select, which means that we 
could share functionality with r:autocomplete.
                
> autocomplete: implement "nothingLabel"
> --------------------------------------
>
>                 Key: RF-10227
>                 URL: https://issues.jboss.org/browse/RF-10227
>             Project: RichFaces
>          Issue Type: Task
>      Security Level: Public(Everyone can see) 
>          Components: base functionality, component-input
>    Affects Versions: 4.0.0.Milestone5
>            Reporter: Juergen Zimmermann
>             Fix For: 5-Future
>
>
> rich:autocomplete doesn't have an attribute for a "nothingLabel" to indicate 
> that there are no matches

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