C# 根據注冊表獲取當前用戶的常用目錄整理

1.使用C#獲取當前程序或解決方案的路徑

2.使用C#獲取當前登錄用戶的相關目錄

3.也可以獲取當前系統通用目錄

4.獲取Windows系統的目錄，從注冊表中獲取。

一、當前用戶的目錄，HKEY_Current_User

二、系統通用目錄，當前機器,Hkey_Local_Machine

 

三、代碼實例

 

 class LocalPathHelper
    {
        //windows當前用戶的注冊表鍵
        private static RegistryKey folders;

        /// <summary>
        /// 全局指定當前獲取注冊表的根節點
        /// 一般只有管理員身份運行，才能操作Registry.LocalMachine 對應的文件
        /// </summary>
        public static RegistryKey RootKey { get; set; }
        static LocalPathHelper()
        {
            SetAsCurrentUser();
        }
        /// <summary>
        /// 設置根節點為LocalMachine
        /// </summary>
        public static void SetAsLocalMachine()
        {
            RootKey = Registry.LocalMachine;
            folders = OpenRegistryKey(Registry.LocalMachine, @"/software/microsoft/windows/currentversion/explorer/shell folders");
        }
        /// <summary>
        /// 設置根節點為LocalMachine
        /// </summary>
        public static void SetAsCurrentUser()
        {
            RootKey = Registry.CurrentUser;
            folders = OpenRegistryKey(Registry.CurrentUser, @"/software/microsoft/windows/currentversion/explorer/shell folders");
        }

        #region 當前用戶路徑
        /// <summary>
        /// windows用戶字體目錄路徑
        /// </summary>
        public static string FontsPath
        {
            get { return GetPath("Fonts"); }
        }
        /// <summary>
        /// windows用戶網絡鄰居路徑
        /// </summary>
        public static string NetHoodPath
        {
            get { return GetPath("Nethood"); }
        }
        /// <summary>
        /// windows用戶我的文檔路徑
        /// </summary>
        public static string PersonalPath
        {
            get { return GetPath("Personal"); }
        }
        /// <summary>
        /// windows用戶最近訪問文檔快捷方式目錄
        /// </summary>
        public static string RecentPath
        {
            get { return GetPath("Recent"); }
        }
        /// <summary>
        /// windows用戶發送到目錄路徑
        /// </summary>
        public static string SendToPath
        {
            get { return GetPath("Sendto"); }
        }
        /// <summary>
        /// windows用戶收藏夾目錄路徑
        /// </summary>
        public static string FavoritesPath
        {
            get { return GetPath("Favorites"); }
        }
        /// <summary>
        /// windows用戶網頁歷史目錄路徑
        /// </summary>
        public static string HistoryPath
        {
            get { return GetPath("History"); }
        }
        /// <summary>
        /// windows用戶cookies目錄路徑
        /// </summary>
        public static string CookiePath
        {
            get { return GetPath("Cookies"); }
        }
        /// <summary>
        /// windows用戶Cache目錄路徑 
        /// </summary>
        public static string CachePath
        {
            get { return GetPath("Cache"); }
        }
        #endregion

        #region //系統路徑
        /// <summary>
        /// widnows用戶桌面路徑
        /// </summary>
        public static string DesktopPath
        {
            get { return GetPath("Desktop"); }
        }
        /// <summary>
        /// windows用戶開始菜單程序路徑
        /// </summary>
        public static string ProgramsPath
        {
            get { return GetPath("Programs"); }
        }
        /// <summary>
        /// windows用戶開始菜單目錄路徑
        /// </summary>
        public static string StartMenuPath
        {
            get { return GetPath("StartMenu"); }
        }
        /// <summary>
        /// windows用戶開始菜單啟動項目路徑
        /// </summary>
        public static string StartupPath
        {
            get { return GetPath("Startup"); }
        }
        /// <summary>
        /// windows用戶應用程序數據目錄
        /// </summary>
        public static string AppdataPath
        {
            get { return GetPath("Appdata"); }
        }
        /// <summary>
        /// 公共文檔
        /// </summary>
        public static string Documents
        {
            get { return GetPath("Documents"); }
        }
        #endregion

        /// <summary>
        /// 當前應用程序的工作目錄，不是程序文件目錄
        /// </summary>
        public static string CurrentProgramPath
        {
            get { return Directory.GetCurrentDirectory(); }
        }
        /// <summary>
        /// 當前應用程序解決方案路徑
        /// </summary>
        public static string CurrentSolutionPath
        {
            get
            {
                string program = CurrentProgramPath;
                DirectoryInfo info = new DirectoryInfo(program);
                return info.Parent.Parent.FullName;
            }
        }

        #region //私有方法
        /// <summary>
        /// 獲取鍵值對應的文件夾
        /// </summary>
        /// <param name="key">鍵</param>
        /// <returns>值</returns>
        private static string GetPath(string key)
        {
            if (RootKey == Registry.LocalMachine)
                key = "Common " + key;
            string path = folders.GetValue(key).ToString();
            if (!string.IsNullOrEmpty(path))
            {
                if (Directory.Exists(path))
                {
                    return path;
                }
            }
            return "'" + key + "'對應的文件夾不存在";
        }
        //打開，指定根節點和路徑的注冊表項
        private static RegistryKey OpenRegistryKey(RegistryKey root, string str)
        {
            str = str.Remove(0, 1) + @"/";
            while (str.IndexOf(@"/") != -1)
            {
                root = root.OpenSubKey(str.Substring(0, str.IndexOf(@"/")));
                str = str.Remove(0, str.IndexOf(@"/") + 1);
            }
            return root;
        }
        #endregion
    }

 

 

 

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