private async void MoveNext()
{
if (!_navSemaphore.Wait(0))
{
return;
}
var clock = new WallClockMeasurement();
if (await _collectionNavigator.MoveNext())
{
clock.Report(200, "MOVE NEXT: Navigation");
UpdateViewToCurrentCollection();
clock.Report(200, "MOVE NEXT: Update UI");
}
_navSemaphore.Release();
}
public static async Task <List <StorageFolder> > GetSubfolders(StorageFolder parent)
{
List <StorageFolder> subfolders = new List <StorageFolder>();
if (parent == null)
{
return(subfolders);
}
await FileErrorHelper.RunMethodAsync(async delegate(String path)
{
var clock = new WallClockMeasurement();
var folderOptions = new QueryOptions(CommonFolderQuery.DefaultQuery);
folderOptions.FolderDepth = FolderDepth.Deep;
var folderQuery = parent.CreateFolderQueryWithOptions(folderOptions);
var unsortedFolders = await folderQuery.GetFoldersAsync();
subfolders = unsortedFolders.OrderBy(f => f.Path).ToList();
clock.Report(0, "Querying " + subfolders.Count() + " subfolders of " + parent.Path);
}, parent.Path);
return(subfolders);
}
