title: How to set event agrument converter in event trigger in Prism?
body: <p>I use Prism in my project and I want to have a converter in the event trigger to convert the event argument to my class model.</p>
  <p>The problem is that the converter is not called in the Prism implementation and sends the event arguments directly to the view model.</p>
  <p>This is my XAML code:</p>
  <pre><code>&lt;interactivity:Interaction.Triggers&gt;
      &lt;interactivity:EventTrigger EventName=&quot;RecordExpanding&quot;&gt;
          &lt;prism:InvokeCommandAction Command=&quot;{Binding RowExpandCommand}&quot; 
                                     CommandParameter=&quot;{Binding Mode=OneWay, UpdateSourceTrigger=PropertyChanged, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=events:RecordExpandingEventArgs}, Converter={StaticResource DataGridRecordExpandingConverter}}&quot; /&gt;
      &lt;/interactivity:EventTrigger&gt;
  &lt;/interactivity:Interaction.Triggers&gt;
  </code></pre>