private void OnSubmitNewStudent(object obj)
{
Students.Add(NewStudent); // add to observable collection
SchoolUtil.EnrollStudent(ClassBook, NewStudent); // create bidirectional connection class <--> student
NewStudentDialogVisible = false;
OnPropertyChanged(nameof(NewStudentDialogVisible));
}
private void OnSubmitAddClass(object obj)
{
SchoolUtil.HireTeacher(NewClass, NewClass.Teacher);
ClassBooks.Add(NewClass);
MainViewModel.ClassBooks.Add(NewClass);
OnPropertyChanged(nameof(ClassBooks));
NewClassDialogVisible = false;
OnPropertyChanged(nameof(NewClassDialogVisible));
Update();
}
private void OnDeleteTeacher(object obj)
{
if (SelectedTeacher == null)
{
return;
}
if (Teachers.Count <= 1)
{
MessageBox.Show("There must be at least one teacher employed");
return;
}
var classBooks = SelectedTeacher.ClassBooks;
Teachers.Remove(SelectedTeacher);
MainViewModel.Teachers.Remove(SelectedTeacher);
foreach (var classBook in classBooks)
{
SchoolUtil.HireTeacher(classBook, Teachers[0]);
}
Update();
}
