System.IO.FileSystemInfo.Refresh C# (CSharp) Méthode

        public void Refresh()
        {
            FileSystemObject.Refresh();
        }

        /// <summary>
        /// Gets a value indicating if the FileSystemInfo object is currently available
        /// </summary>
        /// <param name="fsInfo"></param>
        /// <param name="recordedSerial">if a serial is specified the return value is more reliable.</param>
        /// <returns></returns>
        public static bool IsAvailable(FileSystemInfo fsInfo, string recordedSerial)
        {
            // Get Drive Information
              DriveInfo driveInfo = GetDriveInfo(fsInfo);

              // Refresh the object information (important)
              fsInfo.Refresh();

              // Check if the file exists
              bool fileExists = fsInfo.Exists;

              // Do we have a logical volume?
              if (driveInfo != null && fileExists)
              {
            string currentSerial = driveInfo.GetVolumeSerial();
            // if we have both the recorded and the current serial we can do this very exact
            // by checking if the serials match
            if (!String.IsNullOrEmpty(recordedSerial) && !String.IsNullOrEmpty(currentSerial))
              // return the exact check result
              return (currentSerial == recordedSerial);
              }

              // return the simple check result
              return fileExists;
        }