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https://issues.apache.org/jira/browse/NIFI-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14262228#comment-14262228
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Matt Gilman commented on NIFI-214:
----------------------------------

Orrin,

Thanks for the feedback. The recent code changes will not change the behavior 
your seeing. I think what Mark was suggesting/asking was if when you clicked 
did the canvas pan? It admittedly can be sensitive (possibly affected by the 
tracking speed of your mouse) and I can investigate introducing some threshold 
to prevent panning from kicking in prematurely if this is the case. The right 
click suggestion would eliminate the panning issue (if there is one) since it's 
only triggered via left right.

Anyways, please let me know what your seeing. Thanks.

Matt 

> Unable to deselect a component without browser reload
> -----------------------------------------------------
>
>                 Key: NIFI-214
>                 URL: https://issues.apache.org/jira/browse/NIFI-214
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core UI
>    Affects Versions: 0.0.1
>            Reporter: Orrin Edenfield
>            Assignee: Matt Gilman
>            Priority: Minor
>
> I add in my processors GetFile, PutHDFS, and PutEmail and PutHDFS happens to 
> be selected and I'm unable to deselect the PutHDFS component so I can ask the 
> entire process to run when I click the Run button.  I get the message:
> "No eligible components are selected. Please select the components to be 
> started and ensure they are no longer running."
> I'm guessing because just PutHDFS is selected.  When I type Ctrl + A on my 
> keyboard all components become selected and I'm able to click Run.
> I would expect that clicking white space in the background would deselect all 
> components.



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