public override PropertyTreeMetaObject Process(PropertyTreeBinderImpl parent, PropertyTreeMetaObject target, PropertyTreeNavigator self, NodeList children)
{
Predicate <PropertyTreeNavigator> predicate = ImplicitDirective(target, "base");
var node = children.FindAndRemove(predicate).FirstOrDefault();
Uri baseUri;
IServiceProvider serviceProvider;
if (node == null)
{
baseUri = self.BaseUri;
serviceProvider = parent;
}
else
{
baseUri = Utility.NewUri(Convert.ToString(node.Value));
serviceProvider = parent.GetBasicServices(node);
}
return(target.BindBaseUri(baseUri, serviceProvider));
}