public static ViewSet GetAllViews(Document doc)        {            ViewSet views = new ViewSet();            FilteredElementCollector collector = new FilteredElementCollector(doc);            FilteredElementIterator it = collector.OfClass(typeof(View)).GetElementIterator();            it.Reset();            while (it.MoveNext())            {                View view = it.Current as View3D;                if (null != view && !view.IsTemplate && view.CanBePrinted)                {                    views.Insert(view);                }                else if (null == view)                {                    View view2D = it.Current as View;                    if (view2D.ViewType == ViewType.FloorPlan | view2D.ViewType == ViewType.CeilingPlan | view2D.ViewType == ViewType.AreaPlan | view2D.ViewType == ViewType.Elevation | view2D.ViewType == ViewType.Section)                    {                        views.Insert(view2D);                    }                                 }            }            return views;        }

public static string GetViewDisplayName(View view)        {            String name = view.ViewName;            //special treament to sheet name            if (view.ViewType == ViewType.DrawingSheet)            {                ViewSheet sheet = view as ViewSheet;                name = String.Format("{0} - {1}", sheet.SheetNumber, name);            }            if(view.ViewType == ViewType.ThreeD)            {                if (name.Contains("{")&&name.Contains("}"))                {                    int bracketStart = name.IndexOf("{");                    int bracketEnd = name.IndexOf("}");                    name = name.Substring(bracketStart + 1, bracketEnd - bracketStart - 1);                }            }            else if(view.ViewType == ViewType.FloorPlan)            {                name = string.Format("楼层平面：{0}", name);            }            else if (view.ViewType == ViewType.CeilingPlan)            {                name = string.Format("天花板平面：{0}", name);            }            else if (view.ViewType == ViewType.AreaPlan)            {                name = string.Format("面积平面：{0}", name);            }            else if (view.ViewType == ViewType.Elevation)            {                name = string.Format("建筑立面：{0}", name);            }            else if (view.ViewType == ViewType.Section)            {                name = string.Format("建筑剖面：{0}", name);            }            return name;        }