public void then_element_extended_property_provider_can_be_found()
{
ElementLookup lookup = (ElementLookup)Container.Resolve <ElementLookup>();
var extensionProviders = lookup.FindExtendedPropertyProviders();
Assert.IsTrue(extensionProviders.Count() > 0);
}
public ExtendedPropertyContainer(ElementLookup lookup, ElementViewModel subject,
ObservableCollection <Property> properties)
{
this.properties = properties;
this.subject = subject;
extendedPropetryProviders = lookup.FindExtendedPropertyProviders();
extendedPropetryProviders.CollectionChanged += extendedPropetryProviders_CollectionChanged;
Refresh();
}