/// <summary>
/// Setzt in der GUI die Ausgaben dieses und des letzten Jahres.
/// </summary>
private void SetExpenses()
{
CashClosureHelper helper = new CashClosureHelper(false);
int currentYear = DateTime.Now.Year;
//Expenses of this year
DateTime from = BookingsHelper.makeDateSmall(new DateTime(currentYear, 1, 1));
DateTime to = BookingsHelper.makeDateGreat(DateTime.Today);
expensesThisYear = helper.getAllExpensesForPeriod(from, to);
//Expenses of last year
from = BookingsHelper.makeDateSmall(new DateTime(currentYear - 1, 1, 1));
to = BookingsHelper.makeDateGreat(new DateTime(currentYear - 1, 12, 31));
expensesLastYear = helper.getAllExpensesForPeriod(from, to);
lExpensesThisYear.Content = SafeStringParser.safeParseToMoney(expensesThisYear, true);
lExpensesLastYear.Content = SafeStringParser.safeParseToMoney(expensesLastYear, true);
}
