Revit二次开发之“显示或隐藏视图中选中的元素”

Hide();UnHide();

//显示或隐藏视图中选中的元素
[Transaction(TransactionMode.Manual)]
[Regeneration(RegenerationOption.Manual)]
//[Journaling(JournalingMode.NoCommandData)]
public class HideUnHideSelectInView : IExternalCommand
{
    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
    {
        UIDocument uiDoc = commandData.Application.ActiveUIDocument;
        Selection selection = uiDoc.Selection;

        if (selection.Elements.Size == 0)
        {
            MessageBox.Show("请选择");
            return Result.Cancelled;
        }

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

        Autodesk.Revit.DB.View view = uiDoc.Document.ActiveView;
        //判断在此视图下是否可以隐藏
        foreach (Element el in selection.Elements)
        {
            if (el.CanBeHidden(view) == true)
            {
                ElementSet elementSet = new ElementSet();
                elementSet.Clear();
                elementSet.Insert(el);

                if (el.IsHidden(view) == true)
                {
                    view.Unhide(elementSet);
                }
                else
                {
                    view.Hide(elementSet);
                }
            }
        }

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

from:http://revit.5d6d.com/thread-1088-1-4.html