BuildingCoder.CmdLinq.Execute C# (CSharp) Метод

        public Result Execute(
            ExternalCommandData commandData,
            ref string message,
            ElementSet elements)
        {
            UIApplication app = commandData.Application;
              Document doc = app.ActiveUIDocument.Document;

              FilteredElementCollector collector
            = new FilteredElementCollector( doc );

              collector.OfClass( typeof( FamilyInstance ) );

              List<InstanceData> instanceDataList
            = new List<InstanceData>();

              foreach( Element e in collector )
              {
            instanceDataList.Add(
              new InstanceData( e ) );
              }

              string s = "value1";
              bool b = true;
              int i = 42;

              var found = from instance in instanceDataList where
            (instance.Param1.Equals( s )
            && b == instance.Param2
            && i < instance.Param3)
              select instance;

              foreach( InstanceData instance in found )
              {
            // Do whatever you would like
              }

              return Result.Failed;
        }