private void ExecuteIncomeUIEventUIEventHandler(object obj) { var tuple = (Tuple <object, object>)obj; if (!(tuple.Item2 is IncomeUIEventArgs e)) { return; } e.Handled = true; if (e.Action == "Changed") { ChangeStewardInIncomeCollection(e.StewardModel.Id, e.StewardModel.PersonName, e.FiefId, e.Income); _incomeService.ChangeSteward(e.StewardModel.Id, e.FiefId, e.Income); DataModel.IncomesCollection.Clear(); DataModel.IncomesCollection = _incomeService.GetAllIncomes(Index); } }