private static void isReadOnlyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TagPickerView view = (TagPickerView)d;
bool isReadOnly = (bool)e.NewValue;
view.addButton.IsEnabled = !isReadOnly;
view.clearButton.IsEnabled = !isReadOnly;
view.addTagAutoCompleteBox.IsEnabled = !isReadOnly;
view.tagListBox.IsEnabled = !isReadOnly;
}
static void tagsChangedCallback(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
TagPickerView control = (TagPickerView)o;
ObservableCollection <Tag> tags = (ObservableCollection <Tag>)e.NewValue;
control.selectedTags.Clear();
// WeakEventManager info:
// http://www.kolls.net/blog/?p=17
if (e.OldValue != null)
{
WeakEventManager <ObservableCollection <Tag>, NotifyCollectionChangedEventArgs> .RemoveHandler(
control.tagListBox.ItemsSource as ObservableCollection <Tag>, "CollectionChanged", control.tagPickerTags_CollectionChanged);
}
control.tagListBox.ItemsSource = tags;
if (e.NewValue != null)
{
WeakEventManager <ObservableCollection <Tag>, NotifyCollectionChangedEventArgs> .AddHandler(
control.tagListBox.ItemsSource as ObservableCollection <Tag>, "CollectionChanged", control.tagPickerTags_CollectionChanged);
}
}
