Hi Germán,
Thank you so much for these suggestions and code snippets.
I also came across the QgsEditorWidgetSetup - but had no idea how to use
it. The Python cookbook did not mention it. The cookbook is really great -
but for interactive forms, there is not so much information.
I will try it and
Hi Andreas,
you can modify your Value Relation widget's filter expression using the
QgsEditorWidgetSetup class, in this way:
1) Get the editor widget setup and get a copy of its config dictionary:
ews = layer.editorWidgetSetup(3) # *Let's assume your Value Relation
widget is set for a fiel
Hi,
I found the "QgsValueRelationSearchWidgetWrapper" class, which seems to
have a "setExpression" method - but I don't know how I can access and
change the QgsValueRelationSearchWidgetWrapper of an existing ComboBox
in the attribute form.
Andreas
On 2023-02-13 11:31, Andreas Neumann via QG
Hi,
I am looking for a code snippet in PyQGIS: how can I change the filter
expression for a value relation widget?
Technically, the widget seems to be a QComboBox. I can get access to the
combobox, e.g. to get the current value - but how can I access the QGIS
related functionality, like chan
