Objective:
To develop a web application using asp.net for displaying GoogleMaps.
Steps:
1. Download 'GMaps.dll' file, extract the folder.
2. Open VisualStudio.Net -> File -> New Web Site
3. Go to Tool Box -> right click on any tab -> Add New Tab
- Name it as GoogleMapControls -> right
click on 'GoogleMapControls' tab
- Browse.. 'GMaps.dll' (GMaps.dll file is
provided in gmaps.zip along with the source code)
- OK.
Now, GMaps controls will appear under
'GoogleMapControls' tab.
4. Design:
Design the form as above with 5 TextBoxes, 1 Button and 1 GMap control (present
under 'GoogleMapControls' tab).
5. Code:
using
System;
using
System.Configuration;
using
Subgurim.Controles;
public partial class _Default : System.Web.UI.Page
{
protected void
btnShowMap_Click(object sender,
EventArgs e)
{
string fulladdress =
string.Format("{0}.{1}.{2}",
TextBox1.Text, txtCity.Text, txtCountry.Text);
string skey =
ConfigurationManager.AppSettings["googlemaps.subgurim.net"];
GeoCode geocode;
geocode = GMap1.getGeoCodeRequest(fulladdress);
var glatlng=new
Subgurim.Controles.GLatLng(geocode.Placemark.coordinates.lat,geocode.Placemark.coordinates.lng);
GMap1.setCenter(glatlng, 16, Subgurim.Controles.GMapType.GTypes.Normal);
var oMarker=new
Subgurim.Controles.GMarker(glatlng);
GMap1.addGMarker(oMarker);
}
}
6. web.config file code:
Inorder to use the Gmaps controls, write the following code under appSettings of
web.config file:
<appSettings>
<add key="googlemaps.Subgurim.net" value="YourGoogleMapsAPIKeyHere="/>
</appSettings>
Output:
Note:
'GMaps.dll'is provided in 'gmaps.zip' along with the source code.