private void btnCalculate_Click(object sender, EventArgs e)
{
Serial = 0;
Converter converter = new Converter();
int TotalYear = Convert.ToInt32(tbTotalYear.Text.Trim());
CalcInterests calcInterests = new CalcInterests();
double principlePerYear = converter.ToDouble(tbPrincipal.Text.Trim());
double principaltotal = 0;
double TimesPerYear = converter.ToDouble(tbTimesInYear.Text.Trim());
//double smallYear = converter.ToDouble(tbYear.Text.Trim()) / TimesPerYear;
double bigYear = converter.ToDouble(tbTotalYear.Text.Trim()) * TimesPerYear;
double monthToPay = converter.ToDouble(tbYear.Text.Trim()) / 12 * TimesPerYear;
for (int i = 0; i < bigYear; i++)
{
principaltotal = principaltotal + principlePerYear;
Interest = calcInterests.CalculateCompoundInterest(principaltotal.ToString(), "0", monthToPay.ToString(), tbRate.Text.Trim().ToString(), tbNoOfTimes.Text.Trim().ToString());
principaltotal = +CalculateCompoundInterest(principaltotal, Interest, TimesPerYear);
}
}
private void btnCalculate_Click(object sender, EventArgs e)
{
Converter converter = new Converter();
try
{
CalcInterests calcInterests = new CalcInterests();
Interest = calcInterests.CalculateCompoundInterest(tbPrincipal.Text.Trim().ToString(), tbYear.Text.Trim().ToString(), tbMonth.Text.Trim().ToString(), tbRate.Text.Trim().ToString(), tbNoOfTimes.Text.Trim().ToString());
Principal = converter.ToDouble(tbPrincipal.Text.Trim().ToString());
Rate = converter.ToDouble(tbRate.Text.Trim().ToString());
Time = converter.ToDouble(tbYear.Text.Trim().ToString()) * 12 + converter.ToDouble(tbMonth.Text.Trim().ToString());
Interest = Interest - Principal;
Interestdata interestdata2 = new Interestdata();
interestdata = interestdata2;
interestdata.Interest = Interest;
interestdata.Total = Interest + Principal;
interestdata.Principal = Principal;
interestdata.Rate = Rate;
interestdata.Time_Month = Time;;
if (interestDatalist == null)
{
List <Interestdata> list = new List <Interestdata>();
interestDatalist = list;
}
interestDatalist.Add(interestdata);
dataGridView1.DataSource = null;
dataGridView1.DataSource = interestDatalist;
Label lb = new Label();
lb.Location = new Point(251, 70);
lb.Text = Interest.ToString();
// Adding this label in the form
this.Controls.Add(lb);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public double CalculateCompoundInterest(double p = 0, double i = 0, double timesInYear = 0)
{
Converter converter = new Converter();
try
{
if (p == 0)
{
Principal = converter.ToDouble(tbPrincipal.Text.Trim().ToString());
}
else
{
Principal = p;
}
CalcInterests calcInterests = new CalcInterests();
if (i == 0)
{
Interest = calcInterests.CalculateCompoundInterest(Principal.ToString(), tbYear.Text.Trim().ToString(), tbMonth.Text.Trim().ToString(), tbRate.Text.Trim().ToString(), tbNoOfTimes.Text.Trim().ToString());
}
else
{
Interest = i;
}
Rate = converter.ToDouble(tbRate.Text.Trim().ToString());
Time = converter.ToDouble(tbYear.Text.Trim().ToString()) * 12 + converter.ToDouble(tbMonth.Text.Trim().ToString());
Interest = Interest - Principal;
Interestdata interestdata2 = new Interestdata();
interestdata = interestdata2;
interestdata.Interest = Interest;
interestdata.SN = Serial;
interestdata.Total = Interest + Principal;
interestdata.Principal = Principal;
interestdata.Rate = Rate;
if (timesInYear == 0)
{
interestdata.Time_Month = Time;;
}
else
{
interestdata.Time_Month = timesInYear;
}
if (interestDatalist == null)
{
List <Interestdata> list = new List <Interestdata>();
interestDatalist = list;
}
interestDatalist.Add(interestdata);
dataGridView1.DataSource = null;
dataGridView1.DataSource = interestDatalist;
Label lb = new Label();
lb.Location = new Point(251, 70);
lb.Text = Interest.ToString();
// Adding this label in the form
this.Controls.Add(lb);
return(interestdata.Total);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return(interestdata.Total);
}
