CentralizedControl/HandyControl/HandyControl_Shared/Interactivity/RoutedEventTrigger.cs

using System;
using System.Windows;

namespace HandyControl.Interactivity;

public class RoutedEventTrigger : EventTriggerBase<DependencyObject>
{
    public RoutedEvent RoutedEvent { get; set; }

    protected override void OnAttached()
    {
        var behavior = AssociatedObject as Behavior;
        var associatedElement = AssociatedObject as FrameworkElement;
        if (behavior != null) associatedElement = ((IAttachedObject) behavior).AssociatedObject as FrameworkElement;
        if (associatedElement == null) throw new ArgumentException();
        if (RoutedEvent != null) associatedElement.AddHandler(RoutedEvent, new RoutedEventHandler(OnRoutedEvent));
    }

    private void OnRoutedEvent(object sender, RoutedEventArgs args)
    {
        OnEvent(args);
    }

    protected override string GetEventName()
    {
        return RoutedEvent.Name;
    }
}