cad.net 图元延迟显示,动画效果,编辑器延迟发送提示.

    public class Command_test
    {
        [CommandMethod("tt", CommandFlags.Modal | CommandFlags.UsePickSet | CommandFlags.Redraw)]
        public static void tt()
        {
            Database db = HostApplicationServices.WorkingDatabase;//当前的数据库
            Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
            int aa = 0;
            for (int i = 0; i < 50; i++)
            {
                using (Transaction tr = db.TransactionManager.StartTransaction())
                {
                    //新建圆
                    var ent = EntityAdd.AddCircleToEntity(new Point3d(aa++, 0, 0), 0.5);
                    EntityAdd.AddEntityToMsPs(tr, db, ent);
                    //刷新内容
                    Application.UpdateScreen();
                    tr.Commit();
                }

                ed.WriteMessage(aa++.ToString()+"\n");//这两种不同感觉 
                //ed.WriteMessage(aa++.ToString()+"\r");//这两种不同感觉

                //高版本要加这句令命令栏立即执行
                System.Windows.Forms.Application.DoEvents(); 
                //阻塞
                System.Threading.Thread.Sleep(100);
            }
        }
    }