The following C# Code is used to get the Latitude and Longitude Co-Ordinates of a particular place anywhere in the World using the Address or Zip-code. To get the Latitude and Longitude Co-Ordinates using Address, call the function like this, getLatLong("Briarwood, NY 11435-2694",""). To get the Latitude and Longitude Co-Ordinates using the Zip-code, call the function like this, getLatLong("","11435").

1. public string getLatLong(string Address, string Zip)
2. {
3.     string latlong = "", address = "";
4.     if (Address!=string.Empty)
5.     {
6.         address = "http://maps.googleapis.com/maps/api/geocode/xml?address=" + Address + "&sensor=false";
7.     }
8.     else
9.     {
10.         address = "http://maps.googleapis.com/maps/api/geocode/xml?components=postal_code:" + Zip.Trim() + "&sensor=false";
11.     }
12.     var result = new System.Net.WebClient().DownloadString(address);
13.     XmlDocument doc = new XmlDocument();
14.     doc.LoadXml(result);
15.     XmlNodeList parentNode = doc.GetElementsByTagName("location");
16.     var lat = "";
17.     var lng = "";
18.     foreach (XmlNode childrenNode in parentNode)
19.     {
20.         lat = childrenNode.SelectSingleNode("lat").InnerText;
21.         lng = childrenNode.SelectSingleNode("lng").InnerText;
22.     }
23.     latlong = Convert.ToString(lat) + "," + Convert.ToString(lng);
24.     return latlong;
25. }