private async Task StartLoadFile()
{
IsNewStart = false;
SecureFolder = await ApplicationData.Current.LocalCacheFolder.CreateFolderAsync("SecureFolder", CreationCollisionOption.OpenIfExists);
QueryOptions Options = new QueryOptions
{
FolderDepth = FolderDepth.Shallow,
IndexerOption = IndexerOption.UseIndexerWhenAvailable
};
Options.SetThumbnailPrefetch(ThumbnailMode.ListView, 100, ThumbnailOptions.ResizeThumbnail);
Options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.ItemTypeText", "System.ItemNameDisplayWithoutExtension", "System.FileName", "System.Size", "System.DateModified" });
StorageItemQueryResult ItemQuery = SecureFolder.CreateItemQueryWithOptions(Options);
IReadOnlyList <IStorageItem> EncryptedFileList = await ItemQuery.GetItemsAsync(0, 100);
if (EncryptedFileList.Count == 0)
{
EmptyTips.Visibility = Visibility.Visible;
}
SecureGridView.Visibility = Visibility.Visible;
foreach (var Item in EncryptedFileList)
{
var Size = await Item.GetSizeRawDataAsync().ConfigureAwait(true);
var Thumbnail = new BitmapImage(new Uri("ms-appx:///Assets/LockFile.png"));
var ModifiedTime = await Item.GetModifiedTimeAsync().ConfigureAwait(true);
SecureCollection.Add(new FileSystemStorageItemBase(Item as StorageFile, Size, Thumbnail, ModifiedTime));
}
await SecureCollection.SetStorageQueryResultAsync(ItemQuery).ConfigureAwait(false);
}
