private void RegisterEvent(object obj, string eventName)
{
EventInfo @event = obj.GetType().GetEvent(eventName);
if (@event == null)
{
if (this.SourceObject != null)
{
CultureInfo currentCulture = CultureInfo.CurrentCulture;
string eventTriggerCannotFindEventNameExceptionMessage = ExceptionStringTable.EventTriggerCannotFindEventNameExceptionMessage;
object[] objArray = new object[] { eventName, obj.GetType().Name };
throw new ArgumentException(string.Format(currentCulture, eventTriggerCannotFindEventNameExceptionMessage, objArray));
}
return;
}
if (EventTriggerBase.IsValidEvent(@event))
{
this.eventHandlerMethodInfo = typeof(EventTriggerBase).GetMethod("OnEventImpl", BindingFlags.Instance | BindingFlags.NonPublic);
@event.AddEventHandler(obj, Delegate.CreateDelegate(@event.EventHandlerType, this, this.eventHandlerMethodInfo));
return;
}
if (this.SourceObject != null)
{
CultureInfo cultureInfo = CultureInfo.CurrentCulture;
string eventTriggerBaseInvalidEventExceptionMessage = ExceptionStringTable.EventTriggerBaseInvalidEventExceptionMessage;
object[] objArray1 = new object[] { eventName, obj.GetType().Name };
throw new ArgumentException(string.Format(cultureInfo, eventTriggerBaseInvalidEventExceptionMessage, objArray1));
}
}
private static void OnSourceObjectChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
EventTriggerBase eventTriggerBase = (EventTriggerBase)obj;
object obj1 = eventTriggerBase.SourceNameResolver.Object;
if (args.NewValue == null)
{
eventTriggerBase.OnSourceChanged(args.OldValue, obj1);
return;
}
if (args.OldValue == null && obj1 != null)
{
eventTriggerBase.UnregisterEvent(obj1, eventTriggerBase.GetEventName());
}
eventTriggerBase.OnSourceChanged(args.OldValue, args.NewValue);
}
private static void OnSourceObjectChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
EventTriggerBase eventTriggerBase = (EventTriggerBase)obj;
object @object = eventTriggerBase.SourceNameResolver.Object;
if (args.NewValue == null)
{
eventTriggerBase.OnSourceChanged(args.OldValue, @object);
}
else
{
if (args.OldValue == null && @object != null)
{
eventTriggerBase.UnregisterEvent(@object, eventTriggerBase.GetEventName());
}
eventTriggerBase.OnSourceChanged(args.OldValue, args.NewValue);
}
}
private static void OnSourceNameChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
EventTriggerBase eventTriggerBase = (EventTriggerBase)obj;
eventTriggerBase.SourceNameResolver.Name = (string)args.NewValue;
}