Yes it's possible with the QGIS 3 API only: https://qgis.org/api/classQgsMapLayerComboBox.html# a3f38873230e93d6bc7d73a50671a9c5e
2017-06-05 23:23 GMT+08:00 Ing. Pierluigi De Rosa <pierluigi.derosa@ gfosservices.it>: > Dear all, > > into the QgsMapLayerComboBox is there a simple way to add the --None-- > option for the list of layer? > Normally the widget is already full of all layer but I need also the > option: no layer > > What is the best solution to do that? > Thanks > Pierluigi > > -- > -- > > > > > > ________________________________________________________________________ > Ing. Pierluigi De Rosa > PhD in Scienze della terra > Professore a contratto di G.I.S. presso Università di Perugia > > Studio Associato GFOSSERVICES > > Presso CAMPUS Via F.lli Cairoli 24 - 06127 Perugia (PG) > fax: 075 7823038 > cel: 3497558268 > web: www.gfosservices.it > skype: pierluigi.derosa > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
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