/// <summary> Reads file as bytes asynchronous. </summary>
/// <exception cref="ArgumentNullException"> Thrown when one or more required arguments are null. </exception>
/// <exception cref="ArgumentOutOfRangeException"> Thrown when one or more arguments are outside
/// the required range. </exception>
/// <exception cref="FileNotFoundException"> Thrown when the requested file is not present. </exception>
/// <param name="filePath"> Full pathname of the file. </param>
/// <param name="fileNotFoundCheck"> (Optional) The file not found check. </param>
/// <returns> The file as bytes asynchronous. </returns>
public async Task <byte[]> ReadFileAsBytesAsync(string filePath, FileNotFoundOption fileNotFoundCheck = FileNotFoundOption.DoNotCheck)
{
if (filePath == null)
{
throw new ArgumentNullException(nameof(filePath));
}
if (String.IsNullOrWhiteSpace(filePath))
{
throw new ArgumentOutOfRangeException(nameof(filePath));
}
bool fileExists = (fileNotFoundCheck == FileNotFoundOption.DoNotCheck) || FileExists(filePath);
if ((!fileExists) && fileNotFoundCheck == FileNotFoundOption.ThrowException)
{
throw new FileNotFoundException("The specified file could not be found.", filePath);
}
byte[] result = (fileNotFoundCheck == FileNotFoundOption.ReturnEmpty) ? (new byte[] { }) : null;
if (fileExists)
{
result = await Task.Run(() => File.ReadAllBytes(filePath));
}
return(result);
}
/// <summary> Reads file as bytes asynchronous. </summary>
/// <param name="fileName"> Filename of the file. </param>
/// <param name="appDataSubFolder"> Pathname of the application data sub folder. </param>
/// <param name="fileNotFoundCheck"> (Optional) The file not found check. </param>
/// <returns> The file as bytes asynchronous. </returns>
public async Task <byte[]> ReadFileAsBytesAsync(string fileName, string appDataSubFolder, FileNotFoundOption fileNotFoundCheck = FileNotFoundOption.DoNotCheck)
{
return(await ReadFileAsBytesAsync(AppDataFilePath(fileName, appDataSubFolder), fileNotFoundCheck));
}
private void cancel_button_Click(object sender, RoutedEventArgs e)
{
Option = FileNotFoundOption.Cancel;
Hide();
}
private void skip_button_Click(object sender, RoutedEventArgs e)
{
Option = FileNotFoundOption.Skip;
Hide();
}