How to preserve TwoWay binding of CurrentItem when databinding to CollectionViewSource in ComboBox

Question

Lets say we got a simple VM class

public class PersonViewModel : Observable
    {
        private Person m_Person= new Person(\"Mike\", \"Smith\");

                 


        

Answer 1

The TwoWay binding works as it should, but ComboBox doesn't update itself on the UI when you set SelectedItem or SelectedIndex from code. If you want this functionality, just extend ComboBox and listen to SelectionChanged inherited from Selector or if you only want to set an initial selection, do it on Loaded.