public StaffOverview()
        {
            state = State.App.Instance.Linked;

            ClearFilterCommand       = new RelayCommand(clearFilter);
            DoAccountActionCommand   = new RelayAsyncCommand <AccountAction>(doAccountAction);
            ViewDetailsActionCommand = new RelayAsyncCommand <AccountAction>(viewDetailsAction);
            updateList();
        }
 public RangeValue(LinkedState ls, double start, double end)
 {
     this.LinkedState = ls;
     this.Start       = start;
     this.End         = end;
 }