# One chart for multiple data arrays \> context vs sqlite

**URL:** <https://discourse.nodered.org/t/one-chart-for-multiple-data-arrays-context-vs-sqlite/77032>\
**Category:** General\
**Created:** [28 March 2023 23:17 UTC](https://discourse.nodered.org/t/one-chart-for-multiple-data-arrays-context-vs-sqlite/77032 "2023-03-28T23:17:05Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![smanjunath211](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/smanjunath211/32/95742_2.png) [@smanjunath211](https://discourse.nodered.org/u/smanjunath211)\
**Post date:** [29 March 2023 01:21 UTC](https://discourse.nodered.org/t/one-chart-for-multiple-data-arrays-context-vs-sqlite/77032/3 "2023-03-29T01:21:36Z")

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pls go through this topic, you may get some insights

> [@Cannot "unhide" dashboard chart lines](https://discourse.nodered.org/t/cannot-unhide-dashboard-chart-lines/73066):
>
> I am hiding selected lines on a chart (by nullifying that element of the chart data array and redrawing) This works, and I can have a Reset button to redraw all the lines. Except... If I hide all the lines on the chart, I can't unhide them without reloading the page. Any ideas why not? (Sorry the Gif is a big file, don't know the right way to record the screen for posting) [Animation] [{"id":"30306197ead446be","type":"tab","label":"Flow 4","disabled":false,"info":"","env":[]…

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