How to find current location Latitude & Longitude based on the IP-address using JavaScript

<script language="JavaScript" src="http://j.maxmind.com/app/geoip.js"></script>
 

<br>City:
<script language="JavaScript">document.write(geoip_city());</script> 

<br>Country Code:
<script language="JavaScript">document.write(geoip_country_code());</script>
<br>Country Name:
<script language="JavaScript">document.write(geoip_country_name());</script>
<br>Region Name:
<script language="JavaScript">document.write(geoip_region_name());</script>

 <br>Postal Code:
<script language="JavaScript">document.write(geoip_postal_code());</script>

 <br>Latitude:
<script language="JavaScript">document.write(geoip_latitude());</script>
<br>Longitude:
<script language="JavaScript">document.write(geoip_longitude());</script>

Saving a file in a specified folder inside my project using c#

var path = String.Format("{0}LogFiles\\Logdata.txt", AppDomain.CurrentDomain.BaseDirectory);

 oStreamWriter = new StreamWriter(path, true);

 oStreamWriter.WriteLine("Your text");

How to create groups and sort the groups in c#.net

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace sorted_with_Groups

{

    class Program

    {

        public class Student

        {

            public string First { get; set; }

        }

        public static List<Student> GetStudents()

        {

            List<Student> students = new List<Student>

        {

           new Student {First="adi"},

           new Student {First="balu"},

           new Student {First="reddy"},

           new Student {First="nani"},

           new Student {First="pavan"},

           new Student {First="raghu"},

           new Student {First="ramu"},

           new Student {First="raja"},

           new Student {First="vamsi"},

           new Student {First="cm"},

           new Student {First="pm"},

           new Student {First="hm"},

           new Student {First="sm"}

        };

            return students;

        }

        static void Main(string[] args)

        {

            List<Student> students = GetStudents();

            var sortedGroups =

                from student in students

                orderby student.First

                group student by student.First[0] into newGroup

                orderby newGroup.Key

                select newGroup;

            Console.WriteLine(Environment.NewLine + "sortedGroups:");

            Console.WriteLine("*************************");

            foreach (var studentGroup in sortedGroups)

            {

                Console.WriteLine(studentGroup.Key);

                Console.WriteLine("----------------");

                foreach (var student in studentGroup)

                {

                    Console.WriteLine("{0}", student.First);

                }

                Console.WriteLine("----------------");

            }

            Console.WriteLine("Press any key to exit.");

            Console.ReadKey();

        }

    }

}

OUTPUT