System.IO.__Error.WinIOError C# (CSharp) Méthode

        internal static void WinIOError(int errorCode, String maybeFullPath) {
            // This doesn't have to be perfect, but is a perf optimization.
            bool isInvalidPath = errorCode == Win32Native.ERROR_INVALID_NAME || errorCode == Win32Native.ERROR_BAD_PATHNAME;
            String str = GetDisplayablePath(maybeFullPath, isInvalidPath);

            switch (errorCode) {
            case Win32Native.ERROR_FILE_NOT_FOUND:
                if (str.Length == 0)
                    throw new FileNotFoundException(Environment.GetResourceString("IO.FileNotFound"));
                else
                    throw new FileNotFoundException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("IO.FileNotFound_FileName"), str), str);
                
            case Win32Native.ERROR_PATH_NOT_FOUND:
                if (str.Length == 0)
                    throw new DirectoryNotFoundException(Environment.GetResourceString("IO.PathNotFound_NoPathName"));
                else
                    throw new DirectoryNotFoundException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("IO.PathNotFound_Path"), str));

            case Win32Native.ERROR_ACCESS_DENIED:
                if (str.Length == 0)
                    throw new UnauthorizedAccessException(Environment.GetResourceString("UnauthorizedAccess_IODenied_NoPathName"));
                else
                    throw new UnauthorizedAccessException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("UnauthorizedAccess_IODenied_Path"), str));

            case Win32Native.ERROR_ALREADY_EXISTS:
                if (str.Length == 0)
                    goto default;
                throw new IOException(Environment.GetResourceString("IO.IO_AlreadyExists_Name", str), Win32Native.MakeHRFromErrorCode(errorCode), maybeFullPath);

            case Win32Native.ERROR_FILENAME_EXCED_RANGE:
                throw new PathTooLongException(Environment.GetResourceString("IO.PathTooLong"));

            case Win32Native.ERROR_INVALID_DRIVE:
                throw new DriveNotFoundException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("IO.DriveNotFound_Drive"), str));

            case Win32Native.ERROR_INVALID_PARAMETER:
                throw new IOException(Win32Native.GetMessage(errorCode), Win32Native.MakeHRFromErrorCode(errorCode), maybeFullPath);

            case Win32Native.ERROR_SHARING_VIOLATION:
                if (str.Length == 0)
                    throw new IOException(Environment.GetResourceString("IO.IO_SharingViolation_NoFileName"), Win32Native.MakeHRFromErrorCode(errorCode), maybeFullPath);
                else
                    throw new IOException(Environment.GetResourceString("IO.IO_SharingViolation_File", str), Win32Native.MakeHRFromErrorCode(errorCode), maybeFullPath);

            case Win32Native.ERROR_FILE_EXISTS:
                if (str.Length == 0)
                    goto default;
                throw new IOException(String.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("IO.IO_FileExists_Name"), str), Win32Native.MakeHRFromErrorCode(errorCode), maybeFullPath);

            case Win32Native.ERROR_OPERATION_ABORTED:
                throw new OperationCanceledException();

            default:
                throw new IOException(Win32Native.GetMessage(errorCode), Win32Native.MakeHRFromErrorCode(errorCode), maybeFullPath);
            }
        }