private void GoToDepartment(long?id)
        {
            ChildDepartmentDetails child = new ChildDepartmentDetails();

            child.DataContext = new ChildDepartmentViewModel(id, AdmininstratorVM);

            AdmininstratorVM.SelectedViewModel = child;
        }
 private void ShowSelectedDepartmentDetails()
 {
     if (SelectedDepartment != null)
     {
         IsEditEnable = true;
         if (SelectedDepartment.MainDepartmentId == null)
         {
             MainDepartmentDetails details = new MainDepartmentDetails();
             details.DataContext = new MainDepartmentViewModel(SelectedDepartment.Id, this);
             SelectedViewModel   = details;
         }
         else
         {
             ChildDepartmentDetails details = new ChildDepartmentDetails();
             details.DataContext = new ChildDepartmentViewModel(SelectedDepartment.Id, this);
             SelectedViewModel   = details;
         }
     }
     else
     {
         IsEditEnable = false;
     }
 }