Revit二次开发 - 显示（ShowElements）

    代码实例：

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using System.Collections.Generic;

namespace RevitAddin4
{
    [TransactionAttribute(TransactionMode.Manual)]
    public class RevitAddin : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            UIDocument uiDoc = commandData.Application.ActiveUIDocument;
            Document doc = uiDoc.Document;
            FilteredElementCollector collector = new FilteredElementCollector(doc);
            collector.OfClass(typeof(Wall));

            List<ElementId> walIds = new List<ElementId>();
            foreach (var wall in collector)
            {
                walIds.Add(wall.Id);
            }
            uiDoc.ShowElements(walIds);
            return Result.Succeeded;
        }
    }
}

    运行结果：