public Task <PCLStorage.IFile> CreateFileAsync(string desiredName, PCLStorage.CreationCollisionOption option, CancellationToken cancellationToken = default)
{
var file = new CustomFile
{
Name = desiredName,
Path = System.IO.Path.Combine(DefaultPath, desiredName),
Stream = File.Create(System.IO.Path.Combine(DefaultPath, desiredName)),
};
return(Task.FromResult((PCLStorage.IFile)file));
}
/// <summary>
/// Creates a file in this folder
/// </summary>
/// <param name="desiredName">The name of the file to create</param>
/// <param name="option">Specifies how to behave if the specified file already exists</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>The newly created file</returns>
public async Task <IFile> CreateFileAsync(string desiredName, PCLStorage.CreationCollisionOption option, CancellationToken cancellationToken)
{
Requires.NotNullOrEmpty(desiredName, "desiredName");
StorageFile wrtFile;
try
{
wrtFile = await _wrappedFolder.CreateFileAsync(desiredName, GetWinRTCreationCollisionOption(option)).AsTask(cancellationToken).ConfigureAwait(false);
}
catch (Exception ex)
{
if (ex.HResult == FILE_ALREADY_EXISTS)
{
// File already exists (and potentially other failures, not sure what the HResult represents)
throw new IOException(ex.Message, ex);
}
throw;
}
return(new WinRTFile(wrtFile));
}
Windows.Storage.CreationCollisionOption GetWinRTCreationCollisionOption(PCLStorage.CreationCollisionOption option)
{
if (option == PCLStorage.CreationCollisionOption.GenerateUniqueName)
{
return(Windows.Storage.CreationCollisionOption.GenerateUniqueName);
}
else if (option == PCLStorage.CreationCollisionOption.ReplaceExisting)
{
return(Windows.Storage.CreationCollisionOption.ReplaceExisting);
}
else if (option == PCLStorage.CreationCollisionOption.FailIfExists)
{
return(Windows.Storage.CreationCollisionOption.FailIfExists);
}
else if (option == PCLStorage.CreationCollisionOption.OpenIfExists)
{
return(Windows.Storage.CreationCollisionOption.OpenIfExists);
}
else
{
throw new ArgumentException("Unrecognized CreationCollisionOption value: " + option);
}
}
public Task <PCLStorage.IFolder> CreateFolderAsync(string desiredName, PCLStorage.CreationCollisionOption option, CancellationToken cancellationToken = default) => throw new NotImplementedException();
