public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
Application app = commandData.Application.Application;
UIDocument uidoc = commandData.Application.ActiveUIDocument;
uidoc.Selection.SetElementIds(RebarHelper.TaggedRebarsInView(uidoc));
return Result.Succeeded;
}
public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
{
//Here is the code:
Application app = commandData.Application.Application;
UIDocument uidoc = commandData.Application.ActiveUIDocument;
Document doc = uidoc.Document;
ICollection<ElementId> fec2 = new FilteredElementCollector(doc, doc.ActiveView.Id).OfCategory(BuiltInCategory.OST_Rebar).ToElementIds();
HashSet<ElementId> uniqueTaggedRebars = new HashSet<ElementId>(RebarHelper.TaggedRebarsInView(uidoc));
HashSet<ElementId> uniqueAllRebars = new HashSet<ElementId>(fec2);
ICollection<ElementId> untaggedRebars = new List<ElementId>(uniqueAllRebars.Except(uniqueTaggedRebars));
uidoc.Selection.SetElementIds(untaggedRebars);
return Result.Succeeded;
}