我有一個靜態連接工廠類，需要從配置中初始化連接參數namespace MyApp.Common.LinqToDB{    public static class MyConnectionFactory    {        public static string Authority { get; set; }        public static string Target { get; set; }        public static string ConnectionString { get; set; }        public static string ClientId { get; set; }        public static string ClientSecret { get; set; }        private static ClientCredential ClientCredential = new ClientCredential(ClientId, ClientSecret);    public static IDbConnection createConnection()        {            AuthenticationContext authenticationContext = new AuthenticationContext(Authority);            AuthenticationResult authenticationResult = authenticationContext.AcquireTokenAsync(Target, ClientCredential).Result;            SqlConnection MyDataConnection = new SqlConnection(ConnectionString);            MyDataConnection.AccessToken = authenticationResult.AccessToken;            return MyDataConnection;        }    }}從主要參數中我嘗試初始化這些屬性MyConnectionFactory.Authority = "blahblah";這會在靜態類中引發空值異常。該值未到達班級。System.TypeInitializationException  HResult=0x80131534  Message=The type initializer for 'Workspace.Common.LinqToDB.WorkspaceConnectionFactory' threw an exception.  Source=Common  StackTrace:   at Workspace.Common.LinqToDB.WorkspaceConnectionFactory.set_Authority(String value) in ........Inner Exception 1:ArgumentNullException: Value cannot be null.Parameter name: clientId設置靜態類的靜態屬性值是否錯誤？我知道靜態構造函數（），但它不帶參數，我需要設置連接參數。靜態工廠不是連接工廠的正確模式嗎？如果我不使工廠靜態化，我可以使整個事情正常進行，但這似乎不是正確的做法。