topic Re: Dashboard Studio cascading inputs not updating in Dashboards & Visualizations

Dashboard Studio cascading inputs not updating

UtkuOzkutucu — Fri, 17 Apr 2026 08:42:51 GMT

I am having an issue with cascading dropdowns in Splunk Dashboard Studio.

Parent Dropdown (tok_line): Populated by a CSV lookup.

Child Dropdown (tok_machine): Populated by the same CSV, filtered by the parent token: | inputlookup line_machine_map.csv | where line="$tok_line$" | sort tonumber(sort_order) | table machine.

When I select a value in the parent dropdown (e.g., Line "B3") and a corresponding value in the child dropdown (e.g., Machine "Dolum Spektrum"), and then change the parent selection to "B1", the child dropdown still displays "Dolum Spektrum" in the UI, even though that value is not present in the results for "B1". What can I do?

Re: Dashboard Studio cascading inputs not updating

livehybrid — Fri, 17 Apr 2026 14:43:43 GMT

Hi @UtkuOzkutucu

Unfortunately, the default or previously selected value does not change when an underlying search which populated the child dropdown is updated.

I would suggest raising an idea at https://ideas.splunk.com/ about this.

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Re: Dashboard Studio cascading inputs not updating

ITWhisperer — Fri, 17 Apr 2026 16:18:39 GMT

Dashboard Studio still does not have some of the capabilities of SimpleXML dashboards. You might have better luck approaching this with Classic SimpleXML.