Question

I have a WPF CombBox as follows:

<ComboBox 
   ItemsSource="{Binding Source={StaticResource myList}}"
   SelectedItem="{Binding Path=mySelectedItem}"
/>

The problem I have is that when the bound value changes, the selected value in the combobox’s textbox does not update. (Note – the values in the combobox list do update).

I am using MVVM so I can detect in the view model when the binding changes and call a property changed event and this is updating the combobox, but not the value displayed within the textbox.

I think this could be done in the template of the combobox – somehow make the textbox be bound to the selecteditem of the combobox, or always update when it updates?

EDIT:

I didn’t make clear – I do implement INotifyPropertyChanged properly and when the value changes I raise PropertyChanged for myList and mySelectedItem. The problem is that the textbox within the combobox is not refreshing.

I found a similar question:

WPF ComboBox SelectedItem not Updating

Which gives hints of an answer but not enough unfortunately.

Answer 1

I have updated my answer for you here

Hope it helps!!