public async Task Add(PickedFile file)
{
IStorageFile f = null;
if (file.Source == PickedFileSource.Local)
{
f = await StorageFile.GetFileFromPathAsync(file.Path);
}
else if (file.Source == PickedFileSource.Uri)
{
var uri = new Uri(file.Path);
f = await StorageFile.CreateStreamedFileFromUriAsync(Path.GetFileName(file.Path), uri, RandomAccessStreamReference.CreateFromUri(uri));
}
else
{
throw new ArgumentException("Unknown File source.", nameof(f));
}
lock (syncObject)
{
if (fileOpenPickerUI.CanAddFile(f))
{
fileOpenPickerUI.AddFile(file.Path, f);
}
}
}
public async Task Remove(PickedFile file)
{
lock (syncObject)
{
if (fileOpenPickerUI.ContainsFile(file.Path))
{
fileOpenPickerUI.RemoveFile(file.Path);
}
}
await Task.CompletedTask;
}