private void ComputeNpvExecute(object param)
{
NetPresentValues.Clear();
var rateLevels = npvCalculator.GetRateLevels(NpvParameter.LowerBoundDiscountRate,
NpvParameter.UpperBoundDiscountRate,
NpvParameter.DiscountRateIncrement);
for (var i = 0; i < rateLevels.Count; i++)
{
NetPresentValues.Add(new NetPresentValue {
Index = i + 1, DiscountRateLevel = rateLevels[i]
});
}
for (var i = 0; i < NetPresentValues.Count; i++)
{
var discountRateLevel = NetPresentValues[i].DiscountRateLevel;
var j = 0;
var totalPresentValue = CashFlows.ToList().Sum(c =>
{
j++;
var presentValue = CalculatePresentValue(c.Cash, discountRateLevel, j);
return(presentValue);
});
NetPresentValues[i].Value = totalPresentValue + NpvParameter.InitialInvestment;
}
HasItems = true;
}
private void SetCashFlowsExecute(object param)
{
int i = 0;
if (!int.TryParse(param.ToString(), out i))
{
return;
}
NetPresentValues.Clear();
HasItems = false;
SetCashFlows(i);
}