Hướng Dẫn Tự Động Cập Nhật Mức So Sánh Trắc Ngang Trong Civil 3D Bằng C#

[CommandMethod("SectionElevation")]
 public void svminmax()
 {
     try
     {
         SVMinMaxcommand();
     }
     catch
     {
         Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage("****Uh oh! This command is unable to be used in C3D 2013 or older!****");
     }
     finally
     {
         Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage("\nThis Utility brought to you by: Quux Software, creators of the Sincpac-C3D.");
     }
 }

 private void SVMinMaxcommand()
 {
     Document doc = Application.DocumentManager.MdiActiveDocument;
     Editor ed = doc.Editor;
     Database db = doc.Database;
     double min = Double.MinValue, max = Double.MaxValue;
     PromptSelectionOptions ssOpts = new PromptSelectionOptions();
     ssOpts.MessageForAdding = "Select SectionViews to adjust Min/Max values:";
     ssOpts.MessageForRemoval = "...Select SectionViews to remove from selection:";
     ssOpts.RejectObjectsOnLockedLayers = true;
     TypedValue[] tv = { new TypedValue(0, "AECC_GRAPH_SECTION_VIEW") };
     SelectionFilter filter = new SelectionFilter(tv);
     PromptSelectionResult ssRes = ed.GetSelection(ssOpts, filter);
     if (ssRes.Status != PromptStatus.OK)
         return;
     PromptDoubleOptions dOpts = new PromptDoubleOptions("\nEnter new Minimum elevation for sectionviews:");
     dOpts.AllowArbitraryInput = false;
     PromptDoubleResult dRes = ed.GetDouble(dOpts);
     if (dRes.Status != PromptStatus.OK)
         return;
     min = dRes.Value;
     dOpts.Message = "\nEnter new Maximum elevation for sectionviews:";
     dOpts.DefaultValue = min + 1;
     dOpts.UseDefaultValue = true;
     dRes = ed.GetDouble(dOpts);

     if (dRes.Status != PromptStatus.OK)
         return;
     max = dRes.Value;
     while (max < min)
     {
         dOpts.Message = "...Max must be higher than Min, try again:";
         dRes = ed.GetDouble(dOpts);

         if (dRes.Status != PromptStatus.OK)
             return;
         max = dRes.Value;
     }
     using (Transaction tr = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction())
     {
         foreach (ObjectId id in ssRes.Value.GetObjectIds())
         {
             SectionView sv = (SectionView)id.GetObject(OpenMode.ForWrite);
             if (sv.IsElevationRangeAutomatic)
                 sv.IsElevationRangeAutomatic = false;
             sv.ElevationMax = max;
             sv.ElevationMin = min;
         }
         tr.Commit();
     }
 }