CNSA-212-Personal/MDI/frmCalculate.cs

using System;
using System.Windows.Forms;

namespace Chapter6
{
    public partial class frmCalculate : Form
    {

        public static decimal decDiscountAmt, decTotalPrice, decTotalAmnt = 0;
        public static int intTotalQuantity = 0;
        
        public frmCalculate()
        {
            InitializeComponent();
        }

        private void lblDisQuantity_Click(object sender, EventArgs e)
        {
            // throw new System.NotImplementedException();
        }

        private decimal Calculate(int quantity, decimal price, decimal discount)
        {

            return (quantity * price) * (1 - (discount - 100));

        }
        
        private void btnCalc_Click(object sender, EventArgs e)
        {
        int intQuantity = 0;
        decimal decPrice = 0;
        decimal decDiscount = 0;

        try
        {


            intQuantity = int.Parse(txtQuantity.Text);

            try
            {


                decPrice = int.Parse(txtPrice.Text);

                try
                {


                    decDiscount = int.Parse(txtDiscount.Text);

                    lblOut.Text = Calculate(intQuantity, decPrice, decDiscount).ToString("C");

                }
                catch (Exception exception)
                {
                    //discount error
                }


            }
            catch (Exception exception)
            {
                //price error
            }


        }
        catch (Exception exception)
        {
            //quantity Error
        }
    }

        private void toolStripMenuItem1_Click(object sender, EventArgs e)
        {
            // throw new System.NotImplementedException();
        }

        private void mnuEditCalculate_Click(object sender, EventArgs e)
        {
            if (mnuEditCalculate.Checked)
            {
                mnuEdit.Checked = false;
            }
            else
            {
                mnuEditCalculate.Checked = true;
            }
        }

        
        
        
        
        private void mnuEditSSummary_Click(object sender, EventArgs e)
        {
            
            if (mnuEditSSummary.Checked)
            {
                mnuEditSSummary.Checked = false;
            }
            else
            {
                mnuEditSSummary.Checked = true;
                frmSummary frm = new frmSummary();
                frm.Show();
                frm.Focus();
            }
            
        }
    }
}