private async void ImportDictionaryButtonClick(object sender, RoutedEventArgs e)
{
var filePicker = new FileOpenPicker();
filePicker.FileTypeFilter.Add(".txt");
filePicker.ViewMode = PickerViewMode.Thumbnail;
filePicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary;
filePicker.SettingsIdentifier = "picker1";
filePicker.CommitButtonText = "Import user dictionary";
var files = await filePicker.PickSingleFileAsync();
if (files == null)
{
return;
}
WritePadAPI.importUserDictionary(files.Path);
}