public AltaxoOleDbConnectionString(string originalConnectionString, LoginCredentials credentials)
		{
			_originalConnectionString = originalConnectionString;

			if (null != credentials && !credentials.AreEmpty)
			{
				var connBuilder = new System.Data.OleDb.OleDbConnectionStringBuilder(_originalConnectionString);
				connBuilder[UserIDKey] = credentials.UserName;
				connBuilder[PasswordKey] = credentials.Password;
				_connectionStringWithCredentials = connBuilder.ConnectionString;
			}
			else
			{
				_connectionStringWithCredentials = originalConnectionString;
			}
		}