WPF implement SelectedCommand in MVVM via Interaction.Triggers

 1 xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
 2 
 3 
 4  <ListBox x:Name="peopleLbx" ItemsSource="{Binding PersonList}">
 5             <i:Interaction.Triggers>
 6                 <i:EventTrigger EventName="SelectionChanged">
 7                     <prism:InvokeCommandAction Command="{Binding PersonSelectedCommand}" CommandParameter="{Binding SelectedItem,ElementName=peopleLbx}"/>
 8                 </i:EventTrigger>
 9             </i:Interaction.Triggers>
10         </ListBox>
11 
12 PersonSelectedCommand = new DelegateCommand<Person>(PersonSelectedExecuted);
13 
14 private void PersonSelectedExecuted(Person obj)
15         {
16             // Todo
17         }