# UI control can't be triggered at Nodered start

**URL:** <https://discourse.nodered.org/t/ui-control-cant-be-triggered-at-nodered-start/17679>\
**Category:** General\
**Created:** [8 November 2019 14:21 UTC](https://discourse.nodered.org/t/ui-control-cant-be-triggered-at-nodered-start/17679 "2019-11-08T14:21:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Charlotte](https://avatars.discourse-cdn.com/v4/letter/c/65b543/32.png) [@Charlotte](https://discourse.nodered.org/u/Charlotte)\
**Post date:** [8 November 2019 14:22 UTC](https://discourse.nodered.org/t/ui-control-cant-be-triggered-at-nodered-start/17679/1 "2019-11-08T14:22:00Z")

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Hi,

I have a dashboard tab where I want to show or hide some groups as soon as Node red start, depending on the content of a file.

I'm using UI control for this.

I observed that this is working very well if triggered after node red has started but not working at start when triggered by a "inject once at start" inject node : all the groups are shown.

Do you know why ? and what event I should wait for before hiding groups ?

Thank you

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<div class="post-metadata">

**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [8 November 2019 14:32 UTC](https://discourse.nodered.org/t/ui-control-cant-be-triggered-at-nodered-start/17679/2 "2019-11-08T14:32:19Z")

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either... increase the delay for the inject at start so allow time for dashboard to fire up... or use ui\_control node - that emits a connect event whenever someone connects - and can be used to fir the hiding of things at that point.