public async void Delete()
        {
            if (SelectedRDCGroup != null)
            {
                object result = await DialogHost.Show(new Dialog());

                if ((bool)result)
                {
                    _rdcGroupManager.Delete(SelectedRDCGroup);
                    _rdcGroupManager.Save();

                    RDCGroups.Remove(SelectedRDCGroup);

                    _snackbarMessageQueue.Enqueue("RDC Group deleted and changes saved");
                }
            }
        }
 public void New()
 {
     RDCGroups.Add(_rdcGroupManager.CreateNew());
 }