Chapter 3.7, Problem 3.40CP

Explanation of Solution

Given statement:

In the below program, “try-catch” statement calculate the sum of two numbers and displays the result. “value1TextBox” stores first value, “value2TextBox” stores second value and the result is stored in “sumLabel”.

Complete program:

//Include libraries

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;

//Define namespace

namespace WindowsFormsApplication4

{

        //Define class

        public partial class Form1 : Form

        {

            public Form1()

            {

                InitializeComponent();

            }

            //Define Form1 method

private void Form1_Load(object sender, EventArgs e)

            {

            }

            //Create button

private void Add_button_Click_1(object sender, EventArgs e)

            {

                //Define try block

                try

                {

                    //Declare variables

                    int fValue, sValue, sum;

                    //Initialize varaibles

                    fValue = int...