private void btnAddInstructor_Click(object sender, RoutedEventArgs e)
{
var window = new InstructorCRUD(new Instructor(), WindowType.NewEntity);
window.InstructorChangesMade += InstructorAdded;
window.Show();
}
private void btnEditInstructor_Click(object sender, RoutedEventArgs e)
{
Instructor selected = lboxInstructors.SelectedItem as Instructor;
var window = new InstructorCRUD(selected, WindowType.EditEntity);
window.InstructorChangesMade += InstructorEdited;
window.Show();
}