在對(duì)AutoCAD進(jìn)行二次開(kāi)發(fā)過(guò)程中，有時(shí)會(huì)需要獲取當(dāng)前程序集所在的路徑，以便通過(guò)相對(duì)路徑進(jìn)行數(shù)據(jù)庫(kù)連接，避免打開(kāi)不同的dwg文件后系統(tǒng)當(dāng)前相對(duì)路徑被修改而造成的數(shù)據(jù)庫(kù)連接錯(cuò)誤。以下的代碼實(shí)現(xiàn)了當(dāng)前執(zhí)行程序集路徑的獲取功能：

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

using System.IO;
using System.Reflection;

namespace PathTest
{
    public class Command2
    {
        [CommandMethod("PTHA")]
        public void AssemblyPath()
        {
            Document doc =
              Application.DocumentManager.MdiActiveDocument;
            //當(dāng)前執(zhí)行程序集完整路徑
            string File = Assembly.GetExecutingAssembly().Location;
            //執(zhí)行程序集所在目錄
            FileInfo assinfo = new FileInfo(File);
            string path = assinfo.DirectoryName;

            doc.Editor.WriteMessage(
              "n當(dāng)前程序序集路徑: " + path
            );
        }
    }
}