namespace PatAutoRepair
{
    public partial class Form1 : Form
    {
        const decimal Labor_Hours = 50.00m; //error:Warning    1    The field 'PatAutoRepair.Form1.Labor_Hours' is assigned but its value is never used    

        const decimal Sales_Tax = .08m; //error: Warning    2    The field 'PatAutoRepair.Form1.Sales_Tax' is assigned but its value is never used    

        public Form1()
        {
            InitializeComponent();
        }

        private void tsslExit_Click(object sender, EventArgs e)
        {
            Application.Exit();

        }

        private void tsslCalculate_Click(object sender, EventArgs e)
        {


            decimal partsDecimal, laborDecimal;
            int Hours, Parts;

            try
            {
                Hours = int.Parse(txtHours.Text);
                Parts = int.Parse(txtParts.Text);
                partsDecimal = decimal.Parse(lblParts.Text);
                laborDecimal = decimal.Parse(lblLabor.Text);
            }
            catch(FormatException)
            {
              
                lblLabor.Text = txtHours.Text;
                lblParts.Text = txtParts.Text;
                lblSub.Text = lblLabor.Text * Labor_Hours + lblParts.Text;
//error: Operator '*' cannot be applied to operands of type 'string' and 'decimal'

                lblTax.Text = Convert.ToInt32(lblSub.Text * Sales_Tax);
//error: Operator '*' cannot be applied to operands of type 'string' and 'decimal'    


            }

        }
        

        private void tsslAbout_Click(object sender, EventArgs e)
        {
            AboutBox1 aboutForm = new AboutBox1();
            aboutForm.ShowDialog();


        }

        private void tsslClear_Click(object sender, EventArgs e)
        {
            txtCustName.Clear();
            txtHours.Clear();
            txtJobNum.Clear();
            txtParts.Clear();
            lblLabor.Text = "";
            lblSub.Text = "";
            lblTax.Text = "";



        }
    }
}