Something

using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class CpfCalc : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
      List<ListItem> ageList;
      CpfCalculator cpfCalculator;
      List<CpfRate> cpfRatesList;
      TableRow row;
      TableCell cell;

      if (IsPostBack == false)
      {
          ageList = new List<ListItem>();
          ageList.Add(new ListItem("35 & Below", "35"));
          ageList.Add(new ListItem("Above 35 - 45", "35"));
          ageList.Add(new ListItem("Above 45 - 50", "45"));
          ageList.Add(new ListItem("Above 50 - 55", "50"));
          ageList.Add(new ListItem("Above 55 - 60", "55"));
          ageList.Add(new ListItem("Above 60 - 65", "60"));
          ageList.Add(new ListItem("Above 65", "66"));

          foreach (ListItem age in ageList)
          {
              DropDownListAge.Items.Add(age);
          }

          row = new TableRow();

          cell = new TableCell();
          cell.Text = "Employee Age (Years)";
          row.Cells.Add(cell);

          cell = new TableCell();
          cell.Text = "Employer Contribution (% of Wage)";
          row.Cells.Add(cell);

          cell = new TableCell();
          cell.Text = "Employee Contribution (% of Wage)";
          row.Cells.Add(cell);

          cell = new TableCell();
          cell.Text = "Total Contribution (% of Wage)";
          row.Cells.Add(cell);

          cell = new TableCell();
          cell.Text = "Ordinary Account (Ration Of Contribution)";
          row.Cells.Add(cell);

          cell = new TableCell();
          cell.Text = "Special Account (Ration Of Contribution)";
          row.Cells.Add(cell);

          cell = new TableCell();
          cell.Text = "Medisave Account (Ration Of Contribution)";
          row.Cells.Add(cell);

          TableRates.Rows.Add(row);//end of table header

          cpfCalculator = new CpfCalculator();
          cpfRatesList = cpfCalculator.GetRates();

          for (int i = 0; i < ageList.Count; i++)
          {
              row = new TableRow();
              cell = new TableCell();
              cell.Text = ageList[i].Text;
              row.Cells.Add(cell);

              cell = new TableCell();
              cell.Text = cpfRatesList[i].Employer.ToString();
              row.Cells.Add(cell);

              cell = new TableCell();
              cell.Text = cpfRatesList[i].Employee.ToString();
              row.Cells.Add(cell);

              cell = new TableCell();
              cell.Text = (cpfRatesList[i].Employer + cpfRatesList[i].Employee).ToString();
              row.Cells.Add(cell);

              cell = new TableCell();
              cell.Text = cpfRatesList[i].Ordinary.ToString();
              row.Cells.Add(cell);

              cell = new TableCell();
              cell.Text = cpfRatesList[i].Special.ToString();
              row.Cells.Add(cell);

              cell = new TableCell();
              cell.Text = cpfRatesList[i].Medisave.ToString();
              row.Cells.Add(cell);

              TableRates.Rows.Add(row);
          }
      }
  }
  protected void ButtonCalculate_Click(object sender, EventArgs e)
  {
    CpfCalculator calculator;
    CpfContribution contribution;
    int userAge;
    double userWage;

    try
    {
        userAge = Convert.ToInt32(DropDownListAge.SelectedValue);
        userWage = Convert.ToDouble(TextBoxWage.Text);

        calculator = new CpfCalculator();
        if (RadioButtonListWageCap.SelectedValue == "Yes")
        {
            contribution = calculator.calculate(userAge, userWage, 4500);
        }
        else
        {
            contribution = calculator.calculate(userAge, userWage);
        }

        LabelEmployeeContribution.Text = contribution.Employee.ToString();
        LabelEmployerContribution.Text = contribution.Employer.ToString();
        LabelTotalContribution.Text = contribution.TotalContribution.ToString();
        LabelNetPay.Text = contribution.NetPay.ToString();
        LabelOrdinary.Text = contribution.Ordinary.ToString();
        LabelSpecial.Text = contribution.Special.ToString();
        LabelMedisave.Text = contribution.Medisave.ToString();
    }
    catch (Exception ex)
    {
        LabelErrorMessage.Text = ex.Message;
    }
  }
}