public static EventTranscriptionsCollection GetTranscriptions(DependencyObject dpObject)
{
if (dpObject == null)
throw new InvalidOperationException("The dependency object trying to attach to is set to null");
var collection = dpObject.GetValue(EventTranscriptions.TranscriptionsProperty) as EventTranscriptionsCollection;
if (collection == null)
{
collection = new EventTranscriptionsCollection();
collection.Owner = dpObject;
SetTranscriptions(dpObject, collection);
}
return collection;
}
private static void SetTranscriptions(DependencyObject dpObject, EventTranscriptionsCollection value)
{
dpObject.SetValue(TranscriptionsPropertyKey, value);
var collection = (INotifyCollectionChanged)value;
collection.CollectionChanged += new NotifyCollectionChangedEventHandler(CollectionChanged);
}
