I’m having an issue when trying to extract measurement data from the HTMLCtrl panel object. I have 2 different data sources: SQL Server and OPC UA. Normally, if I query each data source on its own, I can read the data from ctrl.data array. But it isn’t working with Mixed data sources.
What Grafana version and what operating system are you using?
v9.0.2 - Windows Server 2019
What are you trying to achieve?
Getting data from the ctrl object for my custom HTML dashboard.
How are you trying to achieve it?
I have queries from 2 data sources: SQL Server and OPC UA.
There’s an error in the HTMLCtrl object: “Cannot read properties of undefined (reading ‘length’)”
What did you expect to happen?
Data should be embedded in the ctrl object.
Can you copy/paste the configuration(s) that you are having problems with?
Did you receive any errors in the Grafana UI or in related logs? If so, please tell us exactly what they were.
Did you follow any online instructions? If so, what is the URL?
Can’t seem to find any similar issues.