Displaying multicoloured text in a label

        private void btnCalculate_Click(object sender, EventArgs e)

        {

            try

            {

                Amount = float.Parse(txtAmount.Text);

                InterestRateInPercent = float.Parse(txtInterestRateInPercent.Text);

                LoanDuration = float.Parse(txtDurationInYears.Text);

                // Calculates the Interest for one year

                InterestToBePaid = InterestRateInPercent / 100;

                InterestToBePaid = InterestToBePaid * Amount;

                // Display result in label

                lblInterestToBePaid1Year.Text = "The Total Interest You Have To Pay For One Year Is: ";

                lblInterestToBePaid1.Visible = true;

                lblInterestToBePaid1.Text = "" + InterestToBePaid; 

                // Calculates the Total Interest

                InterestToBePaid = InterestToBePaid * LoanDuration;

                // Displays result in label

                lblTotalInterestToBePaid.Text = "The Total Interest You Have To Pay Is: ";

                lblTotalInterestToBePaid1.Visible = true;

                lblTotalInterestToBePaid1.Text = "" + InterestToBePaid;

                

                // Calculates Total Amount to be paid

                TotalAmountToBePaid = Amount + InterestToBePaid;

                lblTotalAmountToBePaid.Text = "The Total Amount You Have To Pay Is: " + TotalAmountToBePaid;

             

                // Caclculates Monthly Repayments

                MonthlyRepayments = TotalAmountToBePaid/LoanDuration/12.0f;

                lblTotalMonthlyRepayments.Text = "Your Monthly Repayments Are: " + MonthlyRepayments;

            }

            catch (Exception exc)

            {

                MessageBox.Show(exc.Message);

            }

        }

// Calculates the Total Amount for one year

TotalAmountToBePaid = Amount + InterestToBePaid;

lblTotalAmountToBePaid1Year.Text = "The Total Amount You Have To Pay For One Year Is: " + TotalAmountToBePaid;

2. We're doing this in a very simplistic way because we're charging the same interest every year even though capital is being repaid throughout the term. The total repayments are therefore higher than they should be. However, if you haven't been taught the formula for working out mortgage repayments properly, you can hardly be expected to figure it out yourself so this will have to do for now.



 

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 MortgageCalculator

{

    public partial class frmMortgageCalculator : Form

    {

        public float Amount;

        public float InterestRateInPercent;

        public float LoanDuration;

        public float InterestToBePaid;

        public float TotalAmountToBePaid;

        public float MonthlyRepayments;

        public frmMortgageCalculator()

        {

            InitializeComponent();

        }

        private void tabpSimpleInterest_Click(object sender, EventArgs e)

        {

        }

        private void btnCalculate_Click(object sender, EventArgs e)

        {

            try

            {

                Amount = float.Parse(txtAmount.Text);

                InterestRateInPercent = float.Parse(txtInterestRateInPercent.Text);

                LoanDuration = float.Parse(txtDurationInYears.Text);

                // Calculates the Interest for one year

                InterestToBePaid = InterestRateInPercent / 100;

                InterestToBePaid = InterestToBePaid * Amount;

                // Display result in label

                lblInterestToBePaid1Year.Text = "The Total Interest You Have To Pay For One Year Is: ";

                lblInterestToBePaid1.Visible = true;

                lblInterestToBePaid1.Text = "" + InterestToBePaid; 

                // Calculates the Total Interest

                InterestToBePaid = InterestToBePaid * LoanDuration;

                // Displays result in label

                lblTotalInterestToBePaid.Text = "The Total Interest You Have To Pay Is: ";

                lblTotalInterestToBePaid1.Visible = true;

                lblTotalInterestToBePaid1.Text = "" + InterestToBePaid;

                // Calculates the Total Amount for one year

                TotalAmountToBePaid = Amount + InterestToBePaid;

                lblTotalAmountToBePaid1Year.Text = "The Total Amount You Have To Pay For One Year Is: " + TotalAmountToBePaid;

                // Calculates Total Amount

                TotalAmountToBePaid = TotalAmountToBePaid * LoanDuration;

                lblTotalAmountToBePaid.Text = "The Total Amount You Have To Pay Is: " + TotalAmountToBePaid;

                // Calculates the Monthly Repayments for one year

                MonthlyRepayments = Amount + InterestToBePaid;

                MonthlyRepayments = MonthlyRepayments / 12;

                lblMonthlyRepayments1Year.Text = "Your Monthly Repayments For One Year Are: " + MonthlyRepayments;

                // Caclculates Total Monthly Repayments

                MonthlyRepayments = MonthlyRepayments * LoanDuration;

                lblTotalMonthlyRepayments.Text = "Your Total Monthly Repayments Are: " + MonthlyRepayments;

            }

            catch (Exception exc)

            {

                MessageBox.Show(exc.Message);

            }

        }

        private void btnExit_Click(object sender, EventArgs e)

        {

            this.Close();

        }

        frmFAQ FrequentlyAskedQuestions = new frmFAQ();

        private void btnFAQ_Click(object sender, EventArgs e)

        {

            FrequentlyAskedQuestions.Show();

        }

        frmUserGuide UserHelp = new frmUserGuide();

        private void btnUserGuide_Click(object sender, EventArgs e)

        {

            UserHelp.Show();

        }

        // Automatically inputs commas after every third number in the text box

        private void txtAmount_TextChanged(object sender, EventArgs e)

        {

            string value = txtAmount.Text.Replace(",", "");

            ulong ul;

            if (ulong.TryParse(value, out ul))

            {

                txtAmount.TextChanged -= txtAmount_TextChanged;

                txtAmount.Text = string.Format("{0:#,#}", ul);

                txtAmount.SelectionStart = txtAmount.Text.Length;

                txtAmount.TextChanged += txtAmount_TextChanged;

            }

        }

        private void button3_Click(object sender, EventArgs e)

        {

            this.Close();

        }

        private void button7_Click(object sender, EventArgs e)

        {

            this.Close();

        }

        private void button2_Click(object sender, EventArgs e)

        {

            FrequentlyAskedQuestions.Show();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            UserHelp.Show();

        }

        private void button6_Click(object sender, EventArgs e)

        {

            FrequentlyAskedQuestions.Show();

        }

        private void button5_Click(object sender, EventArgs e)

        {

            UserHelp.Show();

        }

    }

}