[Qgis-user] QGIS - value relation widget

[Luca Lanteri]

Hi,

now I'm already using the python logic but my code is terrible and I have a
lot of crash problem.
Now that I using your example all is easier and seem to worsk fine.

I owe you one beer.
Many many tanks !

Luca


2015-10-01 22:23 GMT+02:00 Blumentrath, Stefan <Stefan.Blumentrath at nina.no>:

> Hi Luca,
>
>
>
> Sounds like a case for Python logic!
>
> General principles are explained here:
>
>
> http://nathanw.net/2011/09/05/qgis-tips-custom-feature-forms-with-python-logic/
>
>
>
> Also nice, and probably exactly what you are looking for:
>
> http://medspx.fr/blog/Qgis/cascade_forms/
>
>
>
> Cheers
>
> Stefan
>
>
>
> *From:* qgis-user-bounces at lists.osgeo.org [mailto:
> qgis-user-bounces at lists.osgeo.org] *On Behalf Of *Luca Lanteri
> *Sent:* 1. oktober 2015 22:07
> *To:* qgis-user <Qgis-user at lists.osgeo.org>
> *Subject:* [Qgis-user] QGIS - value relation widget
>
>
>
> Hi to all,
>
> I need to build a form when the value of a combo are filtered basing on
> the value of anoter combobox.
> I have a first combo where I choose the region and a second with the
> municipalities.
> I need that the second combo shows only the municipalities of the choosed
> region.
> I tried to use use the widget "relationship value" with the a filter like
> classe_munic = attribute($currentfeature, 'classe_munic') without any
> success.
>
> Has anyone ever done something similar?
> Thank in advance
>
>
> Luca
>
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