private async Task <BookQuotes> ReadData()
{
BookQuotes result = null;
var notesFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
using (Stream stream = await notesFolder.OpenStreamForReadAsync("bookquotes"))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(BookQuotes));
result = serializer.ReadObject(stream) as BookQuotes;
}
return(result);
}
private async void InitListQuotes(object sender, RoutedEventArgs e)
{
BookQuotes x = new BookQuotes();
if (ocBookQuotes != null)
{
ocBookQuotes.CollectionChanged -= ocBookQuotes_CollectionChanged;
}
if (!Windows.Storage.ApplicationData.Current.LocalSettings.Values.ContainsKey("FirstLaunch"))
{
CreateFileFirstTime();
foreach (var i in GetOriginalQuotes()) //cập nhật từ file xml
{
x.Add(i);
}
WriteData(x.ToList());
Windows.Storage.ApplicationData.Current.LocalSettings.Values["FirstLaunch"] = "Launched";
}
else
{
try
{
x = await ReadData();
}
catch (Exception)
{
//throw;
}
if (x == null)
{
x = new BookQuotes();
}
}
MyExtensions.Shuffle(x);
//ocBookQuotes = new ObservableCollection<BookQuote>(x.OrderBy(a => a.Header).ToList());
ocBookQuotes = new ObservableCollection <BookQuote>(x);
ocBookQuotes.CollectionChanged += ocBookQuotes_CollectionChanged;
BookQuotesCVS.Source = ocBookQuotes;
QuoteCount.Text = "Count: " + ocBookQuotes.Count;
//BookQuotesCVS = ocBookQuotes.OrderBy(a => a.Header).ToList();
}
