Saturday, 6 August 2016

write a program to check given number is prime or not in asp.net

checkprime.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="checkprime.aspx.cs" Inherits="our_program.checkprime" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Check Prime Number</title>
    <center><h1>Check Prime Number</h1></center>
</head>
<body>
    <form id="form1" runat="server">
    <center>
    <div>
    <asp:TextBox ID="txt" runat="server"></asp:TextBox>
    <br />
    <br />
    <asp:Button ID="btn" runat="server" Text="Button" onclick="btn_Click" />
    <br />
    <br />
    <asp:Label ID="lbl" runat="server" Text="result will shown here"></asp:Label>

    </div>
    </center>
    </form>
</body>
</html>

checkprime.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace our_program
{
    public partial class checkprime : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btn_Click(object sender, EventArgs e)
        {
            int n = Convert.ToInt16(txt.Text);
            int l = n * 2;
            string output = "";
            int f = 0;
            for (int j = 2; j < n; j++)
            {
                if (n % j == 0)
                {
                    f = 1;
                    break;
                }
            }
            if (f == 0)
            {
                output = "The given number " + n + " is Prime";
            }
            else
            {
                output = "The given number " + n + " is not Prime";
            }
            lbl.Text = output;
       

        }
    }
}

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