public static System.Windows.Interactivity.TriggerCollection GetTriggers(DependencyObject obj)
{
System.Windows.Interactivity.TriggerCollection value = (System.Windows.Interactivity.TriggerCollection)obj.GetValue(Interaction.TriggersProperty);
if (value == null)
{
value = new System.Windows.Interactivity.TriggerCollection();
obj.SetValue(Interaction.TriggersProperty, value);
}
return(value);
}
private static void OnTriggersChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
System.Windows.Interactivity.TriggerCollection oldValue = args.OldValue as System.Windows.Interactivity.TriggerCollection;
System.Windows.Interactivity.TriggerCollection newValue = args.NewValue as System.Windows.Interactivity.TriggerCollection;
if (oldValue != newValue)
{
if (oldValue != null && ((IAttachedObject)oldValue).AssociatedObject != null)
{
oldValue.Detach();
}
if (newValue != null && obj != null)
{
if (((IAttachedObject)newValue).AssociatedObject != null)
{
throw new InvalidOperationException(ExceptionStringTable.CannotHostTriggerCollectionMultipleTimesExceptionMessage);
}
newValue.Attach(obj);
}
}
}
private static void OnTriggersChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
StyleTriggerCollection styleTriggers = e.NewValue as StyleTriggerCollection;
if (styleTriggers != null)
{
System.Windows.Interactivity.TriggerCollection triggers =
System.Windows.Interactivity.Interaction.GetTriggers(d);
foreach (System.Windows.Interactivity.TriggerBase trigger in styleTriggers)
{
System.Windows.Interactivity.TriggerBase triggerClone =
(System.Windows.Interactivity.TriggerBase)trigger.Clone();
foreach (System.Windows.Interactivity.TriggerAction action in trigger.Actions)
{
triggerClone.Actions.Add((System.Windows.Interactivity.TriggerAction)action.Clone());
}
triggers.Add(triggerClone);
}
}
}
