private IEnumerable <DayIncomeObject> GetIncomes()
{
var allIncome = incomeRepository.GetIncomes().ToList();
var lastTime = allIncome.Any() ? allIncome.Last().time : 0;
allIncome.AddRange(dataProvider.GetDayIncomes().ToList().FindAll(i => i.time > lastTime));
return(allIncome);
}