I am using Qt Designer 4.8.5 to develop a plugin (with QGIS 2.14.3-Essen).
I recently started to use
QgsMapLayerComboBox widgets instead of the conventional
Combo Box widget. However, I want to filter out a number of layers so that only a few are shown.
When I used the
Combo box widget, here is the code:
root = QgsProject.instance().layerTreeRoot() main_group = root.findGroup('Main group') layers =  for group in main_group.children(): for layer in group.children(): layers.append(layer.layerName()) self.dockwidget.combo_box.clear() self.dockwidget.combo_box.addItems(sorted(layers))
How can I translate the above code to work with
QgsMapLayerComboBox? I have seen the QgsMapLayerComboBox.setExceptedLayerList() but not exactly sure how to create such a list.