/// <summary>
/// Gets the value of the Triggers attached property
/// </summary>
public static TriggerCollection GetTriggers(DependencyObject d)
{
if (d == null)
{
throw new ArgumentNullException("d");
}
TriggerCollection triggers = (TriggerCollection)d.GetValue(TriggersProperty);
if (triggers == null)
{
triggers = new TriggerCollection();
d.SetValue(TriggersProperty, triggers);
}
return(triggers);
}
private static void OnTriggersChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TriggerCollection oldTriggers = (TriggerCollection)e.OldValue;
if (oldTriggers != null && ((IAttachedObject)oldTriggers).AssociatedObject == d)
{
oldTriggers.Detach();
}
TriggerCollection newTriggers = (TriggerCollection)e.NewValue;
if (newTriggers != null)
{
if (((IAttachedObject)newTriggers).AssociatedObject != null)
{
// assigned from a template, collection must be cloned
d.SetValue(TriggersProperty, newTriggers.Clone());
}
else
{
newTriggers.Attach(d);
}
}
}
