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.blumentr...@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-boun...@lists.osgeo.org [mailto: > qgis-user-boun...@lists.osgeo.org] *On Behalf Of *Luca Lanteri > *Sent:* 1. oktober 2015 22:07 > *To:* qgis-user <Qgis-user@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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