using attached events with caliburn micro Message.Attach

Question

I\'m trying to use caliburn micro message to trigger an attached event that I created:

public static class DataChanging
{

    public delegate void DataChang         


        

Answer 1

Have you tried this?

cal:Message.Attach="[Event Changing] = [Action SelectedDataChanged($eventArgs)]"

I needed to send an event from a child control to the parents ViewModel, and it worked fine for me. I'll post some example code maybe it'll help someone out!

Child Control codebehind:

public partial class MyControl : UserControl
{
    public MyControl()
    {
        InitializeComponent();
    }

    #region Routed Events

    public static readonly RoutedEvent ControlClosedEvent = EventManager.RegisterRoutedEvent(
        "ControlClosed",
        RoutingStrategy.Bubble,
        typeof(RoutedEventHandler),
        typeof(MyControl));

    public event RoutedEventHandler ControlClosed
    {
        add { AddHandler(ControlClosedEvent, value); }
        remove { RemoveHandler(ControlClosedEvent, value); }
    }

    #endregion Routed Events

    private void Close(object sender, RoutedEventArgs e)
    {
        var rea = new RoutedEventArgs(ControlClosedEvent);
        RaiseEvent(rea);
    }
}

Child control XAML:

Parent view: