我想获取CAD中当前标注样式的名字，请用C#语言给我一段完整代码

以下是获取CAD中当前标注样式名称的 C# 代码：

using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Runtime;

namespace GetCurrentDimensionStyleName
{
    public class Commands
    {
        [CommandMethod("GetCurrentDimensionStyleName")]
        public static void GetCurrentDimensionStyleName()
        {
            Document doc = Application.DocumentManager.MdiActiveDocument;
            Editor ed = doc.Editor;
            Database db = doc.Database;

            using (Transaction tr = db.TransactionManager.StartTransaction())
            {
                BlockTable bt = tr.GetObject(db.BlockTableId, OpenMode.ForRead) as BlockTable;
                BlockTableRecord btr = tr.GetObject(bt[BlockTableRecord.ModelSpace], OpenMode.ForRead) as BlockTableRecord;

                foreach (ObjectId objId in btr)
                {
                    Entity ent = tr.GetObject(objId, OpenMode.ForRead) as Entity;
                    Dimension dim = ent as Dimension;
                    if (dim != null)
                    {
                        string dimStyleName = dim.DimensionStyleName;
                        ed.WriteMessage("\nCurrent dimension style name: " + dimStyleName);
                        break;
                    }
                }

                tr.Commit();
            }
        }
    }
}

该代码使用了 AutoCAD API，首先获取当前文档、编辑器和数据库，然后在事务中遍历模型空间中的实体，找到第一个标注并获取其标注样式的名称。