Hi Felix,
I have this video in Danish… https://youtu.be/8shIZrwlQt4?t=975
There are 2 lookup tables and I use the value as you mention – try to look – 
not listen ;-)

Regards



Lene Fischer
Associate Professor

University of Copenhagen
Department of Geoscience and Natural Resource Management
Forest and Landscape College
Nødebovej 77a
3480 Fredensborg
Denmark


MOB +45 40115084
l...@ign.ku.dk<mailto:l...@ign.ku.dk>


[cid:image001.gif@01D4D414.6BE98ED0]

[cid:image002.png@01D4D414.6BE98ED0]<@Lene_Fischer>



From: Qgis-user <qgis-user-boun...@lists.osgeo.org> On Behalf Of Felix Feckler
Sent: 18. december 2019 15:46
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] QGIS form with multiple cascading elements

Hallo,
i want to build a custom QGIS form with multiple cascading elements.
They all should refer to the direct previous selection and only the first 
element is hardcoded vis "value mapping" (not sure if the right english term, 
"Wertabbildung" in german...).
I refer to the previous selection via: "..."=current_value('...') and have 
imported multiple csv tables with my pairs of values.
My problem is, that only the first cascading element works (that refers to the 
hardcoded values), all following once dont allow any selection, or they show 
all values that are present in the relating csv table.

Doesnt the cascading form works with multiple elements or where could i 
improve? I also tested a very very simple relation table, to eliminate 
misspelling etc. but that one also behaved like the other tables.

Thank you and greetings,
Felix
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