Question

我必须使用一组预先选择的折线来运行命令。因此我使用UsePickSet。

在命令之后，我需要通过hilighting /选择一组较小的过滤折线来向用户指示。我在处理后将这些添加到选择集。

然而，看起来，如果我们在方法属性中提到CommandFlags.UsePickSet，那么，它会在命令结束时自动清除选择集，即使它已更改。

有什么方法可以解决这个问题吗？

如果有人想尝试，我做了一个POC。 SetACADHandleSelection1将保留选择，而SetACADHandleSelection2则不会。

    [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 });
            }
        }
    }

Answer 1

尝试使用CommandFlags.Redraw 欲了解更多信息，请访 https://knowledge.autodesk.com/support/autocad-electrical/getting-started/caas/CloudHelp/cloudhelp/2016/ENU/AutoCAD-NET/files/GUID-F77E8FE0-8034-4704-93BD-F717608F8223-htm.html

使用UsePickSet时，在命令后清除选择集

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