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https://issues.apache.org/jira/browse/NIFI-1089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17683486#comment-17683486
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Josh McCullough commented on NIFI-1089:
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I agree that a user could disable it if they wanted, but show it by default. It
could also be triggered only if you have e.g. >1 processor/relationship
selected?
> Add confirm delete pop-up when deleting components from graph
> -------------------------------------------------------------
>
> Key: NIFI-1089
> URL: https://issues.apache.org/jira/browse/NIFI-1089
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Matthew Clarke
> Priority: Minor
>
> It can be very annoying to users when they accidentally delete a component(s)
> from the graph. In the absence of an undo option, it would be nice to have a
> confirmation pop-up box. (It would be a bonus if the pop-up listed the
> components about to be deleted.) Maybe we could add a line in the
> NiFi.properties file to enable this feature, so those who feel the pop-up
> would be annoying can turn them off.
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