private void DisplayAvgLoanBase()
{
var calcUtil = new LoanCalcUtil(
10000 * decimal.Parse(txtTotalLoanBase.Text.Trim()),
int.Parse(cbxYears.Text),
0.01M * decimal.Parse(txtYearInterestRate.Text.Trim()),
PayLoanType.AvgLoanBase,
rbtnQuarterly.Checked ? PayCycleType.PerQuarter : PayCycleType.PerMonth);
Dictionary<int, decimal> interestsDic = new Dictionary<int, decimal>();
List<string> cyclePayList = new List<string>();
decimal cycleInterest = 0.0M;
decimal cycleLoanBase = calcUtil.TotalLoanBase / calcUtil.Cycles;
for (int cycle = 0; cycle < calcUtil.Cycles; cycle++)
{
cycleInterest = calcUtil.CalcInterestForAvgLoanBase(cycle);
interestsDic.Add(cycle, cycleInterest);
string cyclePay = string.Format("第 {0} {1}: 本金（{2:F2}），利息（{3:F2}），共（{4:F2}）元;{5}",
cycle + 1,
calcUtil.PayCycle == PayCycleType.PerMonth ? "月" : "季",
cycleLoanBase,
cycleInterest,
cycleLoanBase + cycleInterest,
Environment.NewLine);
cyclePayList.Add(cyclePay);
}
var totalInterests = interestsDic.Aggregate(0.0M, (seed, kvp) => { return seed + kvp.Value; });
txtInterestsForLoanBase.Text = totalInterests.ToString("F2");
string showText = cyclePayList.Aggregate(string.Empty, (seed, cyclePay) => { return seed + cyclePay; });
rtxtCyclePays.Text = showText;
}
private void DisplayAvgLoanBaseAndInterests()
{
var calcUtil = new LoanCalcUtil(
10000 * decimal.Parse(txtTotalLoanBase.Text.Trim()),
int.Parse(cbxYears.Text),
0.01M * decimal.Parse(txtYearInterestRate.Text.Trim()),
PayLoanType.AvgLoanBaseAndInterests,
rbtnQuarterly.Checked ? PayCycleType.PerQuarter : PayCycleType.PerMonth);
var cyclePay = calcUtil.CalcCyclePayForAvgLoanBaseAndInterests();
txtCyclePayForInterests.Text = cyclePay.ToString("F2");
txtInterestsForLoanBaseAndInterests.Text = (cyclePay * calcUtil.Cycles - (double)calcUtil.TotalLoanBase).ToString("F2");
}
public LoanCalcUtilTest()
{
Decimal loanBase = 200000M;
int years = 10;
Decimal interestRate = 0.0558M;
avgLoanBaseInMthUtil = new LoanCalcUtil(loanBase, years, interestRate,
PayLoanType.AvgLoanBaseAndInterests, PayCycleType.PerMonth);
avgLoanBaseInQtrUtil = new LoanCalcUtil(loanBase, years, interestRate,
PayLoanType.AvgLoanBaseAndInterests, PayCycleType.PerQuarter);
avgLoanBaseMthUtil = new LoanCalcUtil(loanBase, years, interestRate,
PayLoanType.AvgLoanBase, PayCycleType.PerMonth);
avgLoanBaseQtrUtil = new LoanCalcUtil(loanBase, years, interestRate,
PayLoanType.AvgLoanBase, PayCycleType.PerQuarter);
}
private void DisplayAvgLoanBase()
{
var calcUtil = new LoanCalcUtil(
10000 * decimal.Parse(txtTotalLoanBase.Text.Trim()),
int.Parse(cbxYears.Text),
0.01M * decimal.Parse(txtYearInterestRate.Text.Trim()),
PayLoanType.AvgLoanBase,
rbtnQuarterly.Checked ? PayCycleType.PerQuarter : PayCycleType.PerMonth);
Dictionary <int, decimal> interestsDic = new Dictionary <int, decimal>();
List <string> cyclePayList = new List <string>();
decimal cycleInterest = 0.0M;
decimal cycleLoanBase = calcUtil.TotalLoanBase / calcUtil.Cycles;
for (int cycle = 0; cycle < calcUtil.Cycles; cycle++)
{
cycleInterest = calcUtil.CalcInterestForAvgLoanBase(cycle);
interestsDic.Add(cycle, cycleInterest);
string cyclePay = string.Format("第 {0} {1}: 本金（{2:F2}），利息（{3:F2}），共（{4:F2}）元;{5}",
cycle + 1,
calcUtil.PayCycle == PayCycleType.PerMonth ? "月" : "季",
cycleLoanBase,
cycleInterest,
cycleLoanBase + cycleInterest,
Environment.NewLine);
cyclePayList.Add(cyclePay);
}
var totalInterests = interestsDic.Aggregate(0.0M, (seed, kvp) => { return(seed + kvp.Value); });
txtInterestsForLoanBase.Text = totalInterests.ToString("F2");
string showText = cyclePayList.Aggregate(string.Empty, (seed, cyclePay) => { return(seed + cyclePay); });
rtxtCyclePays.Text = showText;
}
private void DisplayAvgLoanBaseAndInterests()
{
var calcUtil = new LoanCalcUtil(
10000 * decimal.Parse(txtTotalLoanBase.Text.Trim()),
int.Parse(cbxYears.Text),
0.01M * decimal.Parse(txtYearInterestRate.Text.Trim()),
PayLoanType.AvgLoanBaseAndInterests,
rbtnQuarterly.Checked ? PayCycleType.PerQuarter : PayCycleType.PerMonth);
var cyclePay = calcUtil.CalcCyclePayForAvgLoanBaseAndInterests();
txtCyclePayForInterests.Text = cyclePay.ToString("F2");
txtInterestsForLoanBaseAndInterests.Text = (cyclePay * calcUtil.Cycles - (double)calcUtil.TotalLoanBase).ToString("F2");
}
