private void UpdateHandlers(PropertyValue oldPropertyValue, PropertyValue newPropertyValue)
{
if (oldPropertyValue != null)
{
SceneNodeProperty sceneNodeProperty = oldPropertyValue.get_ParentProperty() as SceneNodeProperty;
if (sceneNodeProperty != null)
{
sceneNodeProperty.PropertyReferenceChanged -= new Microsoft.Expression.DesignSurface.Documents.PropertyReferenceChangedEventHandler(this.OnPropertyPropertyReferenceChanged);
sceneNodeProperty.remove_PropertyChanged(new PropertyChangedEventHandler(this.OnPropertyPropertyChanged));
this.ChangeActiveEditMode((PropertyContainerEditMode)0);
}
}
if (newPropertyValue == null)
{
return;
}
SceneNodeProperty sceneNodeProperty1 = newPropertyValue.get_ParentProperty() as SceneNodeProperty;
if (sceneNodeProperty1 == null)
{
return;
}
sceneNodeProperty1.PropertyReferenceChanged += new Microsoft.Expression.DesignSurface.Documents.PropertyReferenceChangedEventHandler(this.OnPropertyPropertyReferenceChanged);
sceneNodeProperty1.add_PropertyChanged(new PropertyChangedEventHandler(this.OnPropertyPropertyChanged));
}