Question: Write a Windows Forms application that calculates and prints the take$-$home pay for a commissioned sales employee. Allow the user to enter values for the name of the employee and the sales amount for the week. Employees receive $7\%$ of the total sales. Federal tax rate is $18\%.$ Retirement contribution is $15\%.$ Social Security tax rate is $9\%.$ Use appropriate constants. Write Input, Display, and Calculate methods. Your final output should display all calculated values, including the total deductions and all defined constants.

My Code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace Homework$\_6\_$Problem$\_3$

$\{$

$$public partial class Form$1$ : Form

$\{$

$$private const double COMMISSION$\_$RATE $=0\mathrm{.}07$;

$$private const double FEDERAL$\_$TAX$\_$RATE $=0\mathrm{.}18$;

$$private const double RETIREMENT$\_$CONTRIBUTION$\_$RATE $=0\mathrm{.}15$;

$$private const double SOCIAL$\_$SECURITY$\_$TAX$\_$RATE $=0\mathrm{.}09$;

$$public Form$1()$

$\{$

$$InitializeComponent$()$;

$\}$

$$private void BtnCalculate$\_$Click$($object sender$,$ EventArgs e$)$

$\{$

$$string employeeName $=$ txtEmployeeName.Text;

$$if $($double$.$TryParse$($txtWeeklySales$.$Text, out double WeeklySales$)$ && WeeklySales $>0)$

$\{$

$$double Commission $=$ WeeklySales $*$ COMMISSION$\_$RATE;

$$double FederalTax $=$ Commission $*$ FEDERAL$\_$TAX$\_$RATE;

$$double RetirementContribution $=$ Commission $*$ RETIREMENT$\_$CONTRIBUTION$\_$RATE;

$$double SocialSecurityTax $=$ Commission $*$ SOCIAL$\_$SECURITY$\_$TAX$\_$RATE;

$$double TotalDeductions $=$ FederalTax $+$ RetirementContribution $+$ SocialSecurityTax;

$$double NetPay $=$ Commission $-$ TotalDeductions;

$$txtFederalTax$.$Text $=$ FederalTax.ToString$("$C$")$;

$$txtRetirementContribution$.$Text $=$ RetirementContribution.ToString$("$C$")$;

$$txtSocialSecurity$.$Text $=$ SocialSecurityTax.ToString$("$C$")$;

$$txtNetPay$.$Text $=$ NetPay.ToString$("$C$")$;

$\}$

$$else

$\{$

$$MessageBox$.$Show$("$Total weekly sales must be a positive dollar amount. Please re$-$enter."$)$;

$\}$

$\}$

$$private void BtnClear$\_$Click$($object sender$,$ EventArgs e$)$

$\{$

$$txtEmployeeName$.$Clear$()$;

$$txtWeeklySales$.$Clear$()$;

$$txtFederalTax$.$Clear$()$;

$$txtRetirementContribution$.$Clear$()$;

$$txtSocialSecurity$.$Clear$()$;

$$txtNetPay$.$Clear$()$;

$\}$

$$private void BtnExit$\_$Click$($object sender$,$ EventArgs e$)$

$\{$

$$this$.$Close$()$;

$\}$

$$private void Label$12\_$Click$($object sender$,$ EventArgs e$)$

$\{$

$\}$

$$private void Form$1\_$Load$($object sender$,$ EventArgs e$)$

$\{$

$\}$

$\}$

$\}$

My Windows Form App:

Employee Name:

Employee's Total Weekly Sales:

Employee Commission is $7\%$ of total sales.

Deductions

Federal Tax $(18\%)$:

Retirement Contribution $(15\%)$:

Social Security $(9\%)$:

Total Net Pay:

Total Net Pay:

Exit

When I enter the employee's total weekly sales, the outputs, federal tax, retirement contribution, social security, and total net pay, for my Windows Form App don't show up$.$ Please help me fix it so that the outputs show up$.$