N_prime.aspx
<!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>N prime number</title>
<center><h1>N prime numbers</h1></center>
</head>
<body>
<form id="form1" runat="server">
<center>
<div>
<asp:TextBox ID="txt" runat="server"></asp:TextBox>
<br />
<br />
<asp:Button ID="bt" runat="server" Text="Button" onclick="bt_Click" />
<br />
<br />
<asp:Label ID="lbl" runat="server" Text="result are shown here"></asp:Label>
</div>
</center>
</form>
</body>
</html>
N_prime.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 N_prime : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void bt_Click(object sender, EventArgs e)
{
int n = Convert.ToInt16(txt.Text);
int prime = 0;
int l = n * 2;
string output = "";
for (int i = 2; i < n * 4; i++)
{
int f = 0;
for (int j = 2; j < i; j++)
{
if (i % j == 0)
{
f = 1;
break;
}
}
if (f == 0)
{
output = output + "<br>" + i;
prime++;
}
if (prime == n)
{
break;
}
}
lbl.Text = "prime numbers are " + output;
}
}
}
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