private static void OnTemplateChanged(
DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
InteractivityTemplate dt = (InteractivityTemplate)e.NewValue;
if (dt == null)
{
return;
}
#if (!SILVERLIGHT)
dt.Seal();
#endif
InteractivityItems ih = (InteractivityItems)dt.LoadContent();
BehaviorCollection bc = Interaction.GetBehaviors(d);
Microsoft.Xaml.Behaviors.TriggerCollection tc = Interaction.GetTriggers(d);
foreach (Behavior behavior in ih.Behaviors)
{
bc.Add(behavior);
}
foreach (TriggerBase trigger in ih.Triggers)
{
tc.Add(trigger);
}
}
/// <summary>
/// Gets the TriggerCollection containing the triggers associated with the specified object.
/// </summary>
/// <param name="obj">The object from which to retrieve the triggers.</param>
/// <returns>A TriggerCollection containing the triggers associated with the specified object.</returns>
public static TriggerCollection GetTriggers(DependencyObject obj)
{
TriggerCollection triggerCollection = (TriggerCollection)obj.GetValue(Interaction.TriggersProperty);
if (triggerCollection == null)
{
triggerCollection = new TriggerCollection();
obj.SetValue(Interaction.TriggersProperty, triggerCollection);
}
return(triggerCollection);
}
private static void OnTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (LicenseManager.UsageMode == LicenseUsageMode.Designtime)
{
return;
}
InteractivityTemplate dt = (InteractivityTemplate)e.NewValue;
dt.Seal();
InteractivityItems ih = (InteractivityItems)dt.LoadContent();
BehaviorCollection bc = Interaction.GetBehaviors(d);
TriggerCollection tc = Interaction.GetTriggers(d);
foreach (Behavior behavior in ih.Behaviors)
{
bc.Add(behavior);
}
foreach (TriggerBase trigger in ih.Triggers)
{
tc.Add(trigger);
}
}
/// <exception cref="InvalidOperationException">Cannot host the same TriggerCollection on more than one object at a time.</exception>
private static void OnTriggersChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
TriggerCollection oldCollection = args.OldValue as TriggerCollection;
TriggerCollection newCollection = args.NewValue as TriggerCollection;
if (oldCollection != newCollection)
{
if (oldCollection != null && ((IAttachedObject)oldCollection).AssociatedObject != null)
{
oldCollection.Detach();
}
if (newCollection != null && obj != null)
{
if (((IAttachedObject)newCollection).AssociatedObject != null)
{
throw new InvalidOperationException(ExceptionStringTable.CannotHostTriggerCollectionMultipleTimesExceptionMessage);
}
newCollection.Attach(obj);
}
}
}
