I have the following Combo box binding which was within a WPF window. I needed to create the window as a UserControl and since doing that my binding will not show the itemSource.
ComboBox Width="200" ItemsSource="{Binding CallerChoices}" SelectedValue="Sam" SelectedItem="{Binding CallerChoosen}"
The Item source CallerChoices is a List property on the .cs page.
Hope you can help as I have looked around and it just keeps showing how to bind to items stored within the XAML