Revit二次开发之“遍历标高Level”

遍历当前文档中的所有标高。以便根据标高过滤同一标高下的元素。

//遍历标高
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
//[Journaling(JournalingMode.NoCommandData)]
public class cmdGetLevel : IExternalCommand
{
    public Result Execute(ExternalCommandData cmdData, ref string message, ElementSet elements)
    {
        UIDocument uiDoc = cmdData.Application.ActiveUIDocument;
        Selection selection = uiDoc.Selection;

        Transaction ts = new Transaction(uiDoc.Document, "level");
        ts.Start();

        FilteredElementCollector collector = new FilteredElementCollector(uiDoc.Document);
        ICollection<Element> collection = collector.OfClass(typeof(Level)).ToElements();
        foreach (Element e in collection)
        {
            TaskDialog.Show("标高", e.Name);
        }

        ts.Commit();
        return Result.Succeeded;
    }
}

from:http://revit.5d6d.com/thread-1203-1-1.html