C# 使用UsePickSet时，选择集在命令后清除

我必须使用预选的多段线集运行命令。因此，我使用UsePickSet

命令发出后，我需要通过亮显/选择一组较小的过滤多段线来向用户指示。处理后，我将这些添加到selectionset

但是，如果我们在方法属性中提到CommandFlags.UsePickSet，那么当命令结束时，它会自动清除选择集，即使它已更改

有没有办法克服这个问题

如果有人想试试，我做了一个POC。SETACADHANDRESELECTION1将保留选择，而SETACADHANDRESELECTION2将不保留选择

    [CommandMethod("GetACADHandle", CommandFlags.UsePickSet)]
    public static void GetACADHandle()
    {
        Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;

        PromptSelectionResult res = ed.SelectImplied();
        if (res.Status != PromptStatus.Error)
        {
            var pline = res.Value[0].ObjectId;

            ed.WriteMessage(pline.Handle.ToString());

            // SetACADHandleSelection(pline.Handle.ToString());
        }
    }



    [CommandMethod("SetACADHandleSelection1")]
    public static void SetACADHandleSelection1(string handle)
    {
        Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
        Document doc = Application.DocumentManager.MdiActiveDocument;
        Database db = doc.Database;

        if (string.IsNullOrWhiteSpace(handle))
        {
            PromptResult res = ed.GetString("Enter acad Handle");

            if (res.Status != PromptStatus.Error)
            {
                handle = res.StringResult;
            }

        }
        if (!string.IsNullOrWhiteSpace(handle))
        {

            using (Transaction Tx = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction())
            {
                Handle handlep = new Handle(Convert.ToInt64(handle, 16));
                ObjectId objId = db.GetObjectId(false, handlep, 0);

                ed.SetImpliedSelection(new ObjectId[] { objId });
            }
        }
    }


    [CommandMethod("SetACADHandleSelection2", CommandFlags.UsePickSet)]
    public static void SetACADHandleSelection2(string handle)
    {
        Editor ed = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument.Editor;
        Document doc = Application.DocumentManager.MdiActiveDocument;
        Database db = doc.Database;

        if (string.IsNullOrWhiteSpace(handle))
        {
            PromptResult res = ed.GetString("Enter acad Handle");

            if (res.Status != PromptStatus.Error)
            {
                handle = res.StringResult;
            }

        }
        if (!string.IsNullOrWhiteSpace(handle))
        {

            using (Transaction Tx = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction())
            {
                Handle handlep = new Handle(Convert.ToInt64(handle, 16));
                ObjectId objId = db.GetObjectId(false, handlep, 0);

                ed.SetImpliedSelection(new ObjectId[] { objId });
            }
        }
    }

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尝试使用CommandFlags。重新绘制 欲了解更多信息，请访问：

请看，如果共识是否定的，他们就不应该这样做！