private void NextLessonButton_Click(object sender, RoutedEventArgs e)
{
LessonWindow lessonWindow = new LessonWindow(_user, _lessonService.GetLessonByUserAndExerciseNumber(_user, _exerciseNumber).lesson_number + 1);
lessonWindow.Show();
this.Close();
}
private void LessonButton_Click(object sender, RoutedEventArgs e)
{
if (int.TryParse((sender as Button)?.Content.ToString().Replace(GlobalVariables.lessonNumberPartialText, ""), out int lessonNumber))
{
LessonWindow lessonWindow = new LessonWindow(_user, lessonNumber);
lessonWindow.Show();
this.Close();
}
}