Question

我的目标是使用asp.net，c＃和html根据应税收入计算联邦所得税。以下是我到目前为止编码的内容。摘要：用户通过文本框输入年收入和受抚养人数量。每个受抚养人都有1000美元的扣除额。应税所得=年收入 - （家属人数* 1000）。我需要将应税收入乘以税率。

我在计算应税收入的这个价值时遇到了困难，仍然需要对计算按钮进行编码以完成它的工作。

Taxable Income Range and Tax Rate:
>450000 -- 39.6%.
>378000 and <=450000 -- 33%.
>192000 and <=378000 -- 28%.
>71000 and <=192000 -- 25%.
>15000 and <=71000 -- 15%.
<=15000 -- 10%.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Form1.aspx.cs" Inherits="WebApplication1.Form1" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
</head>
<body>
    <form id="form1" runat="server">
        <div style="TEXT-ALIGN: center">
           Enter your name here: <asp:TextBox ID="name" runat="server"></asp:TextBox>
    <br /><br />
           Annual Income: <asp:TextBox ID="income" runat="server"></asp:TextBox>
    <br /><br />
           Number of dependents: <asp:TextBox ID="dependents" runat="server"></asp:TextBox>
    <br /><br />
    <asp:Button ID="calculate" runat="server" Text="Calculate Tax" OnClick="calculate_Click" />
    <br /><br />        
          Total Tax: <asp:TextBox ID="total" runat="server"></asp:TextBox>
        </div>
    </form>
</body>
</html>

这是.cs，我还需要编辑_rates秒来代表应税收入和税率的上表。

namespace WebApplication1 {
}
public class IncomeTaxCalculator
{
protected List<KeyValuePair<double, int>> _rates = null;
protected IncomeTaxCalculator()
{
    // Load from database.
    _rates = new List<KeyValuePair<double, int>>();
    _rates.Add(new KeyValuePair<double, int>(.10, 15000));
    _rates.Add(new KeyValuePair<double, int>(.15, 15000));
    _rates.Add(new KeyValuePair<double, int>(.25, 71000));
    _rates.Add(new KeyValuePair<double, int>(.28, 192000));
    _rates.Add(new KeyValuePair<double, int>(.33, 378000));
    _rates.Add(new KeyValuePair<double, int>(.396, 450000));
}
public double Single(int income)
{
    double tax = 0;
    for (int i = _rates.Count - 1; i >= 0; i--)
    {
        if (income > _rates[i].Value)
        {
            tax += (income - _rates[i].Value) * _rates[i].Key;
            income = _rates[i].Value;
        }
    }
    return tax;
}
// Singletone
protected static IncomeTaxCalculator _instance = null;
public static IncomeTaxCalculator Instance
{
    get
    {
        if (_instance == null)
        {
            _instance = new IncomeTaxCalculator();
        }
        return _instance;
    }
}
}
public partial class Form1 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Response.Write(IncomeTaxCalculator.Instance.Single(40000).ToString("C"));
    }
    protected void calculate_Click(object sender, EventArgs e)
    {
    } 
}

Answer 1

Form1没有Instance。你可能想：

Response.Write(IncomeTaxCalculator.Instance.Single(40000).ToString("C"));

使用asp.net，html和c＃计算应税收入和税率

1 个答案: