Custom field tags - can they be referenced?

[stascher]

Hello,

I can add custom field tags using the Tag statement and remove them using the Untag statement. But is there a way to determine from within either a load script or chart expression, whether or not a field has a specific tag? If not, then what practical use do custom field tags serve? 

Regards,

Steven

[rwunderlich · Accepted solution]

To my knowledge there is no way to read existing tags using script or chart expressions. Although that might be a useful feature. 

Tags can be accessed via API code. A couple of examples where they are used in the Qlik Sense Client:

- Fields with tag $hidden are excluded from the current selections display.

- The Calendar picker only displays fields that have $date or $datetime tags.

Some customers apply custom tags that they use in their mashups. 

-Rob