ASDV-C-Sharp/MP1/TipTaxTotal_CalebFontenot/Form1.cs

using System.Linq.Expressions;

namespace TipTaxTotal_CalebFontenot
{
    public partial class TipTaxTotal : Form
    {
        public TipTaxTotal()
        {
            InitializeComponent();
        }

        private void calculateButton_Click(object sender, EventArgs e)
        {
            // Setup Vars
            double tip;
            double salesTax;
            double subTotal;
            double total;
            double salesTaxAmount;
            double tipAmount;

            try
            {

                // Get data
                tip = double.Parse(tipTextBox.Text);
                salesTax = double.Parse(salesTaxTextBox.Text);
                subTotal = double.Parse(subTotalTextbox.Text);

                // Calculate
                // Check if tip is a decimal. If it isn't, turn it into one.
                if (tip > .99)
                {
                    while (tip > 1)
                    {
                        tip = tip / 10;
                    }
                }
                if (salesTax > .99)
                {
                    while (salesTax > 1)
                    {
                        salesTax = salesTax / 10;
                    }
                }

                tipAmount = subTotal * tip;
                salesTaxAmount = subTotal * salesTax;
                total = subTotal + (tipAmount + salesTaxAmount);

                //Output

                outputLabel.Text = "Your total is $" + total;
                salesTaxTextBox.Text = salesTax.ToString();
                tipTextBox.Text = tip.ToString();

            }
            catch
            {
                MessageBox.Show("That's not a number, you doofus!");
            }

           
        }
    }
}