//Import file from speciafied folder
private async void AppBarButton_ImportFile(object sender, RoutedEventArgs e)
{
Windows.Storage.Pickers.FileOpenPicker open =
new Windows.Storage.Pickers.FileOpenPicker();
open.SuggestedStartLocation =
Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
//Show only txt files
open.FileTypeFilter.Add(".txt");
Windows.Storage.StorageFile file = await open.PickSingleFileAsync();
//If file is opened succesfully
if (file != null)
{
//Try catch block for readng file streams
try
{
//Open stream for reading
Windows.Storage.Streams.IRandomAccessStream randAccStream =
await file.OpenAsync(Windows.Storage.FileAccessMode.Read);
//Create StreamReader object with random access stream object as argument
StreamReader stream = new StreamReader(randAccStream.AsStream());
//Read stream to end and store in String type
String text = stream.ReadToEnd();
//Load string to editor box
editor.Text = text;
}
//Catch any exceptions if try block unsuccesful
catch (Exception)
{
//Create and display error dialog
ContentDialog errorDialog = new ContentDialog()
{
Title = "File open error",
Content = "Sorry, I couldn't open the file.",
PrimaryButtonText = "Ok"
};
await errorDialog.ShowAsync();
}
}
}
private void OnCoreCloseFileStream(Windows.Storage.Streams.IRandomAccessStream stream)
{
StreamProvider.CloseStream(stream.AsStream());
}