How to access listview in MainWindow.xaml.cs from NServiceBus subscriber handler class

Question

I would like to post my NServiceBus subscripiton messages derived from an EventHandler class to a ListView. The ListView is located inside the MainWindow.xaml of the WPF application.

Here is my NServiceBus subscription event handler code. Note: I would like to post the event message to the ListView control in MainWindow.xaml. Any ideas?

namespace EventPublisher.SubscriberDemoWPF
{
   public class PublishTrackEventHandler : IHandleMessages<PublishTrackEvent>
   {
      public void Handle(PublishTrackEvent message)
      {
         Trace.TraceInformation(message.GetType().Name);

         //Need to post event message to ListView control in MainWindow.xaml UI;
      }
   }
}

Here is my MainWindow.xaml code, which is in the same namespace as my event handler code:

<Window x:Class="EventPublisher.SubscriberDemoWPF.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <ListView Height="260" HorizontalAlignment="Left" Margin="12,12,0,0" Name="lstEvents" VerticalAlignment="Top" Width="479" />
    </Grid>
</Window>

Here is the MainWindow.xaml.cs code (typical):

namespace EventPublisher.SubscriberDemoWPF
{
   /// <summary>
   /// Interaction logic for MainWindow.xaml
   /// </summary>
   public partial class MainWindow : Window
   {
      public MainWindow()
      {
         InitializeComponent();
      }

      //Would normally use listview.items.add("messages"); 
   }
}

Adam Fyles Adam Fyles · Accepted Answer · 2012-03-04T20:47:23

From your NSB message handler you could fire an event that has been attached to from the Window. Depending on how you are managing threads, be aware of updating UI elements from threads other than the UI thread. Check out this article in MSDN for events in WPF.

How to access listview in MainWindow.xaml.cs from NServiceBus subscriber handler class

1 Answers