如何使用C＃以编程方式找到我的Google云端硬盘文件夹？
类似的问题在这里 。 仅适用于Google Drive而不是Dropbox ：
如何使用C＃以编程方式找到我的Google Drive文件夹？
- 注册？
- 环境变量？
- 等等…
我个人认为，最好的方法是通过SQLite3访问同一个文件。
string dbFilePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Google\\Drive\\sync_config.db"); if (!File.Exists(dbFilePath)) dbFilePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Google\\Drive\\user_default\\sync_config.db"); string csGdrive = @"Data Source="+ dbFilePath + ";Version=3;New=False;Compress=True;"; SQLiteConnection con = new SQLiteConnection(csGdrive); con.Open(); SQLiteCommand sqLitecmd = new SQLiteCommand(con); //To retrieve the folder use the following command text sqLitecmd.CommandText = "select * from data where entry_key='local_sync_root_path'"; SQLiteDataReader reader = sqLitecmd.ExecuteReader(); reader.Read(); //String retrieved is in the format "\\?\" that's why I have used Substring function to extract the path alone. Console.WriteLine("Google Drive Folder: " + reader["data_value"].ToString().Substring(4)); con.Dispose();
您可以从此处获取.Net的SQLite库。 还要添加对System.Data.SQLite引用，并将其包含在项目中以运行上面的代码。
要检索用户，请从上面的代码中重新输入entry_key='user_email'
我接受了Sarath的回答，将其重新修改为更具弹性（引用数据源路径，null取决于读者索引，附加错误检查，“使用”因此对象被适当处理，添加了一堆注释，并抛出一些LINQ（因为，linq :-)）。
这个特定的实现捕获并记录exception，然后在任何错误上返回string.Empty …因为这是我当前应用程序需要它的方式。 如果您的应用需要例外，请删除try / catch。
/// /// Retrieves the local Google Drive directory, if any. /// /// Directory, or string.Empty if it can't be found public static string GetGoogleDriveDirectory() { try { // Google Drive's sync database can be in a couple different locations. Go find it. string appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData); string dbName = "sync_config.db"; var pathsToTry = new[] { @"Google\Drive\" + dbName, @"Google\Drive\user_default\"+ dbName }; string syncDbPath = (from p in pathsToTry where File.Exists(Path.Combine(appDataPath, p)) select Path.Combine(appDataPath, p)) .FirstOrDefault(); if (syncDbPath == null) throw new FileNotFoundException("Cannot find Google Drive sync database", dbName); // Build the connection and sql command string conString = string.Format(@"Data Source='{0}';Version=3;New=False;Compress=True;", syncDbPath); using (var con = new SQLiteConnection(conString)) using (var cmd = new SQLiteCommand("select * from data where entry_key='local_sync_root_path'", con)) { // Open the connection and execute the command con.Open(); var reader = cmd.ExecuteReader(); reader.Read(); // Extract the data from the reader string path = reader["data_value"]?.ToString(); if (string.IsNullOrWhiteSpace(path)) throw new InvalidDataException("Cannot read 'local_sync_root_path' from Google Drive configuration db"); // By default, the path will be prefixed with "\\?\" (unless another app has explicitly changed it). // \\?\ indicates to Win32 that the filename may be longer than MAX_PATH (see MSDN). // Parts of .NET (eg the File class) don't handle this very well, so remove this prefix. if (path.StartsWith(@"\\?\")) path = path.Substring(@"\\?\".Length); return path; } } catch (Exception ex) { Trace.TraceError("Cannot determine Google Drive location. Error {0} - {1}", ex.Message, ex.StackTrace); return string.Empty; } }