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Sum using array concept

Posted By:satyapriyanayak       Posted Date: July 07, 2014    Points: 40    Category: Visual Studio    URL: http://www.dotnetspark.com  

In this Code Snippets we will know how to sum three numbers using array concept.
 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Sum_using_array
{
    public partial class Form1 : Form
    {
        int[] n1 = new int[3];
        public Form1()
        {
            InitializeComponent();
        }

        private void btn_sum_Click(object sender, EventArgs e)
        {
            int value;

            if (int.TryParse(textBox1.Text, out value))
                n1[0] = value;
            if (int.TryParse(textBox2.Text, out value))
                n1[1] = value;
            if (int.TryParse(textBox3.Text, out value))
                n1[2] = value;
            textBox4.Text = n1.Sum().ToString();
            
        }
        

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!System.Text.RegularExpressions.Regex.IsMatch(e.KeyChar.ToString(), "\\d+"))
            {
                e.Handled = true;
            }

        }

        private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!System.Text.RegularExpressions.Regex.IsMatch(e.KeyChar.ToString(), "\\d+"))
            {
                e.Handled = true;
            }
        }

        private void textBox3_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (!System.Text.RegularExpressions.Regex.IsMatch(e.KeyChar.ToString(), "\\d+"))
            {
                e.Handled = true;
            }
        }
    }
}


     

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