1 public IList<Element> findElementsByCategory(Autodesk.Revit.UI.UIApplication aApp,
2 Document aDoc, BuiltInCategory ACategory)
3 {
4 FilteredElementCollector collector = new FilteredElementCollector(aDoc).OfCategory(
5 ACategory).WhereElementIsNotElementType();
6
7 IList<Element> oList = new List<Element>();
8 foreach (Element ent in collector)
9 oList.Add(ent);
10 return oList;
11 }
12
13 Document doc = commandData.Application.ActiveUIDocument.Document;
14 Selection sel = commandData.Application.ActiveUIDocument.Selection;
15 IList<Element> oList = findElementsByCategory(commandData.Application,
16 doc, BuiltInCategory.OST_Walls);
17 ICollection<ElementId> oSelSet = new List<ElementId>();
18 foreach (Element ent in oList)
19 oSelSet.Add(ent.Id);
20 sel.SetElementIds(oSelSet);
