Create A New Marker Style

New Marker Style

 public Autodesk.AutoCAD.DatabaseServices.ObjectId CreateMarkerStyle(string msName)
        {
            Autodesk.AutoCAD.ApplicationServices.Document acadDoc =
                Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
            Autodesk.Civil.ApplicationServices.CivilDocument civilDoc =
                Autodesk.Civil.ApplicationServices.CivilApplication.ActiveDocument;
            using (Autodesk.AutoCAD.DatabaseServices.Transaction trans =
                acadDoc.Database.TransactionManager.StartTransaction())
            {
                Autodesk.Civil.DatabaseServices.Styles.MarkerStyleCollection msCollection =
                    civilDoc.Styles.MarkerStyles;
                Autodesk.AutoCAD.DatabaseServices.ObjectId msStyleId = msCollection.Add(msName);
                Autodesk.Civil.DatabaseServices.Styles.MarkerStyle msStyle =
                    msStyleId.GetObject(Autodesk.AutoCAD.DatabaseServices.OpenMode.ForWrite)
                    as Autodesk.Civil.DatabaseServices.Styles.MarkerStyle;
                trans.Commit();
                return msStyleId;
            }
        }