private void AddProgress_Click(object sender, RoutedEventArgs e)
{
ClearNotification();
if (LessonsBox.SelectedIndex != 0 && !IsProgressInProgressList(LessonsBox.SelectedItem as string))
{
Progress progress = new Progress {
ComplitedTasks = 0, idStudent = stud.idStudent, LessonName = LessonsBox.SelectedValue.ToString(), NeededTasks = 1, TaskProgress = 0
};
progressViewModel.addProgress(progress);
progressViewModel.OrderProgress();
}
}