public static void SetHandlers(DependencyObject owner, CommandHandlerCollectionBinding commands)
{
owner.SetValue(HandlersProperty, commands);
var collection = commands as INotifyCollectionChanged;
if(collection != null)
{
collection.CollectionChanged += CommandHandlersCollectionChanged;
}
}
public static CommandHandlerCollectionBinding GetHandlers(DependencyObject owner)
{
if(owner == null)
{
throw new ArgumentNullException("owner");
}
var collection = owner.GetValue(HandlersProperty) as CommandHandlerCollectionBinding;
if(collection == null)
{
collection = new CommandHandlerCollectionBinding
{
Owner = owner
};
SetHandlers(owner, collection);
}
return collection;
}