internal void ExistingLessons(object sender, RoutedEventArgs e)
{
// Reset previous loaded lesson
Lessons = null;
CloseAllPage();
var lessonFolders = Directory.GetDirectories(Data.NineFolder);
foreach (var lessonFolder in lessonFolders)
{
var lessonName = Path.GetFileName(lessonFolder);
var dataFile = Data.GetDataFile(lessonName);
var pdfPath = Data.GetPdfFile(lessonName);
var thumbPath = Data.GetPageFile(lessonName, 0);
if (File.Exists(dataFile) && File.Exists(pdfPath) && File.Exists(thumbPath))
{
var bitmap = BitmapHelper.Load(thumbPath);
Lessons.Add(
new KeyValuePair <int, MinimalLesson>(
Lessons.Count(),
new MinimalLesson(lessonName, bitmap, false)
)
);
}
else
{
try
{
Directory.Delete(lessonFolder, true);
}
catch (IOException e1)
{
MessageBox.Show(e1.Message);
}
}
}
}
