C# 根据注册表获取当前用户的常用目录整理

class LocalPathHelper
{
//windows当前用户的注册表键
private static RegistryKey folders;

/// <summary>
/// 全局指定当前获取注册表的根节点
/// 一般只有管理员身份运行，才能操作Registry.LocalMachine 对应的文件
/// </summary>
public static RegistryKey RootKey { get; set; }
static LocalPathHelper()
{
SetAsCurrentUser();
}
/// <summary>
/// 设置根节点为LocalMachine
/// </summary>
public static void SetAsLocalMachine()
{
RootKey = Registry.LocalMachine;
folders = OpenRegistryKey(Registry.LocalMachine, @"/software/microsoft/windows/currentversion/explorer/shell folders");
}
/// <summary>
/// 设置根节点为LocalMachine
/// </summary>
public static void SetAsCurrentUser()
{
RootKey = Registry.CurrentUser;
folders = OpenRegistryKey(Registry.CurrentUser, @"/software/microsoft/windows/currentversion/explorer/shell folders");
}

#region 当前用户路径
/// <summary>
/// windows用户字体目录路径
/// </summary>
public static string FontsPath
{
get { return GetPath("Fonts"); }
}
/// <summary>
/// windows用户网络邻居路径
/// </summary>
public static string NetHoodPath
{
get { return GetPath("Nethood"); }
}
/// <summary>
/// windows用户我的文档路径
/// </summary>
public static string PersonalPath
{
get { return GetPath("Personal"); }
}
/// <summary>
/// windows用户最近访问文档快捷方式目录
/// </summary>
public static string RecentPath
{
get { return GetPath("Recent"); }
}
/// <summary>
/// windows用户发送到目录路径
/// </summary>
public static string SendToPath
{
get { return GetPath("Sendto"); }
}
/// <summary>
/// windows用户收藏夹目录路径
/// </summary>
public static string FavoritesPath
{
get { return GetPath("Favorites"); }
}
/// <summary>
/// windows用户网页历史目录路径
/// </summary>
public static string HistoryPath
{
get { return GetPath("History"); }
}
/// <summary>
/// windows用户cookies目录路径
/// </summary>
public static string CookiePath
{
get { return GetPath("Cookies"); }
}
/// <summary>
/// windows用户Cache目录路径
/// </summary>
public static string CachePath
{
get { return GetPath("Cache"); }
}
#endregion

#region //系统路径
/// <summary>
/// widnows用户桌面路径
/// </summary>
public static string DesktopPath
{
get { return GetPath("Desktop"); }
}
/// <summary>
/// windows用户开始菜单程序路径
/// </summary>
public static string ProgramsPath
{
get { return GetPath("Programs"); }
}
/// <summary>
/// windows用户开始菜单目录路径
/// </summary>
public static string StartMenuPath
{
get { return GetPath("StartMenu"); }
}
/// <summary>
/// windows用户开始菜单启动项目路径
/// </summary>
public static string StartupPath
{
get { return GetPath("Startup"); }
}
/// <summary>
/// windows用户应用程序数据目录
/// </summary>
public static string AppdataPath
{
get { return GetPath("Appdata"); }
}
/// <summary>
/// 公共文档
/// </summary>
public static string Documents
{
get { return GetPath("Documents"); }
}
#endregion

/// <summary>
/// 当前应用程序的工作目录，不是程序文件目录
/// </summary>
public static string CurrentProgramPath
{
get { return Directory.GetCurrentDirectory(); }
}
/// <summary>
/// 当前应用程序解决方案路径
/// </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>
/// 获取键值对应的文件夹
/// </summary>
/// <param name="key">键</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 + "'对应的文件夹不存在";
}
//打开，指定根节点和路径的注册表项
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
}