private void ExcecuteDeleteDepartments()
{
AllDepartments = _depoRepo.GetAllDepartments();
foreach (var goal in Goals)
{
goal.RelatedDepartments.RemoveAll(x => x == SelectedGoal.Id);
}
AllDepartments.Single(x => x.Id == SelectedDepartment.Id).Deleted = true;
_depoRepo.SaveDepartments(AllDepartments);
AllDepartments = _depoRepo.GetAllDepartments();
UpdateCanvas();
}