Using dashboard variables in transformations doesn't work (v10.2.1)

Grafana Dashboards
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1

hi
i had trying to use the transformation “filter values” with dashboard variables $xxx but it doesn’t work as it’s explain in video on website (what’s new in Grafana v10.2) .
i’m using grafana on windows .
thanks for your help

2

hi
i show more detail for my problem.
this link What's new in Grafana v10.2 | Grafana documentation ,explain in the chapter " Transformations" by video how use dashboard variable to filter by value.
but when i try ,grafana doesn’t show my $variable.

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can you help or may be a bug ?

1 Like
3

Are there any regex expressions needed? This is for the dashboard variables?

4

It might not show it but does it work if you just manually add it?

5

thanks for your answers
manually doesn’ t work too
info: my variable is type text box with constant value. i wish that is not a problem type of variable ( string / number) ….

6

What happens if you use the Explore function with the data source and manually enter everything?

1 Like
7

if i set value manually that is ok
in query data source ,grafana show ${juy} and show also « (template variable) 414570 »
414570 is selected value

8

Is there any kind of variable result that might not be part of the requirement for the query? Or a regex that’s missing?

9

hi
thanks a lot but my new question is :
does the functionality showed in video working with your dashboard ? because when i do the same operation (write $juy for example) in “transformation datas” ,if after i select “query” and return in “transformation datas” ,grafana change $juy by 0

10

hi
to be sure that my explanations of this bug are understanding.

i tried this new functionality :

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but in my case ,at this step nothing are displaying (template variable)
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has anyone tried this functionality ?

thanks

11

Hi there

Thats exactly the video i also looked at and tried to reproduce the same with the variables in the transformation. But it does not work, also not in version 10.3 Is there maybe a special config needed for this in the backend somewhere? Thanks for reply.

12

Yes, transformationsVariableSupport

1 Like
13

perfect. I’m so happy. Thats the solution and now its working just as in the video :smile:

14

hi here
thanks for these informations because i did not know this configuration of grafana and now it is work also for me
nice day