I have noticed a lot of information about how to get your location using Google geolocation looks, based on IP address. But I am wondering if and how I could use this service t
Here is a c# implementation. Please note that I am no c# programmer - so the code might be ugly. But it works. It gives you more than just the address. This is a console application, you should be able to adapt it for webforms or winforms easily.
using System;
using System.Threading;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Xml;
using System.Xml.XPath;
namespace ReverseGeoLookup
{
// http://code.google.com/apis/maps/documentation/geocoding/#ReverseGeocoding
public static string ReverseGeoLoc(string longitude, string latitude,
out string Address_ShortName,
out string Address_country,
out string Address_administrative_area_level_1,
out string Address_administrative_area_level_2,
out string Address_administrative_area_level_3,
out string Address_colloquial_area,
out string Address_locality,
out string Address_sublocality,
out string Address_neighborhood)
{
Address_ShortName = "";
Address_country = "";
Address_administrative_area_level_1 = "";
Address_administrative_area_level_2 = "";
Address_administrative_area_level_3 = "";
Address_colloquial_area = "";
Address_locality = "";
Address_sublocality = "";
Address_neighborhood = "";
XmlDocument doc = new XmlDocument();
try
{
doc.Load("http://maps.googleapis.com/maps/api/geocode/xml?latlng=" + latitude + "," + longitude + "&sensor=false");
XmlNode element = doc.SelectSingleNode("//GeocodeResponse/status");
if (element.InnerText == "ZERO_RESULTS")
{
return ("No data available for the specified location");
}
else
{
element = doc.SelectSingleNode("//GeocodeResponse/result/formatted_address");
string longname="";
string shortname="";
string typename ="";
bool fHit=false;
XmlNodeList xnList = doc.SelectNodes("//GeocodeResponse/result/address_component");
foreach (XmlNode xn in xnList)
{
try
{
longname = xn["long_name"].InnerText;
shortname = xn["short_name"].InnerText;
typename = xn["type"].InnerText;
fHit = true;
switch (typename)
{
//Add whatever you are looking for below
case "country":
{
Address_country = longname;
Address_ShortName = shortname;
break;
}
case "locality":
{
Address_locality = longname;
//Address_locality = shortname; //Om Longname visar sig innehålla konstigheter kan man använda shortname istället
break;
}
case "sublocality":
{
Address_sublocality = longname;
break;
}
case "neighborhood":
{
Address_neighborhood = longname;
break;
}
case "colloquial_area":
{
Address_colloquial_area = longname;
break;
}
case "administrative_area_level_1":
{
Address_administrative_area_level_1 = longname;
break;
}
case "administrative_area_level_2":
{
Address_administrative_area_level_2 = longname;
break;
}
case "administrative_area_level_3":
{
Address_administrative_area_level_3 = longname;
break;
}
default:
fHit = false;
break;
}
if (fHit)
{
Console.Write(typename);
Console.ForegroundColor = ConsoleColor.Green;
Console.Write("\tL: " + longname + "\tS:" + shortname + "\r\n");
Console.ForegroundColor = ConsoleColor.Gray;
}
}
catch (Exception e)
{
//Node missing either, longname, shortname or typename
fHit = false;
Console.Write(" Invalid data: ");
Console.ForegroundColor = ConsoleColor.Red;
Console.Write("\tX: " + xn.InnerXml + "\r\n");
Console.ForegroundColor = ConsoleColor.Gray;
}
}
//Console.ReadKey();
return (element.InnerText);
}
}
catch (Exception ex)
{
return ("(Address lookup failed: ) " + ex.Message);
}
}
}
private string getLocationByGeoLocation(string longitude, string latitude)
{
string locationName = string.Empty;
try
{
if (string.IsNullOrEmpty(longitude) || string.IsNullOrEmpty(latitude))
return "";
string url = string.Format("https://maps.googleapis.com/maps/api/geocode/xml?latlng={0},{1}&sensor=false", latitude, longitude);
WebRequest request = WebRequest.Create(url);
using (WebResponse response = (HttpWebResponse)request.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
DataSet dsResult = new DataSet();
dsResult.ReadXml(reader);
try
{
foreach (DataRow row in dsResult.Tables["result"].Rows)
{
string fullAddress = row["formatted_address"].ToString();
}
}
catch (Exception)
{
}
}
}
}
catch (Exception ex)
{
lblError.Text = ex.Message;
}
return locationName;
}