Draw Route Between Current Location and Destination On Google Maps in ASP.Net

Rahul Saxena
9y
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Article

GetRouteDirection.zip

The following is my aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>Search Route Direction</title>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC6v5-2uaq_wusHDktM9ILcqIrlPtnZgEk&sensor=false">
</script>
<%--Getting User Current Location--%>
<script type="text/javascript">
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(success);
} else {
alert("There is Some Problem on your current browser to get Geo Location!");
}
function success(position) {
var lat = position.coords.latitude;
var long = position.coords.longitude;
var city = position.coords.locality;
var LatLng = new google.maps.LatLng(lat, long);
var mapOptions = {
center: LatLng,
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("MyMapLOC"), mapOptions);
var marker = new google.maps.Marker({
position: LatLng,
title: "<div style = 'height:60px;width:200px'><b>Your location:</b><br />Latitude: "
+ lat + +"<br />Longitude: " + long
});
marker.setMap(map);
var getInfoWindow = new google.maps.InfoWindow({ content: "<b>Your Current Location</b><br/> Latitude:" +
lat + "<br /> Longitude:" + long + ""
});
getInfoWindow.open(map, marker);
}
</script>
<%--Getting Route Direction From User Current Location to Destination--%>
<script type="text/javascript">
function SearchRoute() {
document.getElementById("MyMapLOC").style.display = 'none';
var markers = new Array();
var myLatLng;
//Find the current location of the user.
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(p) {
var myLatLng = new google.maps.LatLng(p.coords.latitude, p.coords.longitude);
var m = {};
m.title = "Your Current Location";
m.lat = p.coords.latitude;
m.lng = p.coords.longitude;
markers.push(m);
//Find Destination address location.
var address = document.getElementById("txtDestination").value;
var geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'address': address }, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
m = {};
m.title = address;
m.lat = results[0].geometry.location.lat();
m.lng = results[0].geometry.location.lng();
markers.push(m);
var mapOptions = {
center: myLatLng,
zoom: 4,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("MapRoute"), mapOptions);
var infoWindow = new google.maps.InfoWindow();
var lat_lng = new Array();
var latlngbounds = new google.maps.LatLngBounds();
for (i = 0; i < markers.length; i++) {
var data = markers[i];
var myLatlng = new google.maps.LatLng(data.lat, data.lng);
lat_lng.push(myLatlng);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: data.title
});
latlngbounds.extend(marker.position);
(function(marker, data) {
google.maps.event.addListener(marker, "click", function(e) {
infoWindow.setContent(data.title);
infoWindow.open(map, marker);
});
})(marker, data);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//***********ROUTING****************//
//Initialize the Path Array.
var path = new google.maps.MVCArray();
//Getting the Direction Service.
var service = new google.maps.DirectionsService();
//Set the Path Stroke Color.
var poly = new google.maps.Polyline({ map: map, strokeColor: '#4986E7' });
//Loop and Draw Path Route between the Points on MAP.
for (var i = 0; i < lat_lng.length; i++) {
if ((i + 1) < lat_lng.length) {
var src = lat_lng[i];
var des = lat_lng[i + 1];
path.push(src);
poly.setPath(path);
service.route({
origin: src,
destination: des,
travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function(result, status) {
if (status == google.maps.DirectionsStatus.OK) {
for (var i = 0, len = result.routes[0].overview_path.length; i < len; i++) {
path.push(result.routes[0].overview_path[i]);
}
} else {
alert("Invalid location.");
window.location.href = window.location.href;
}
});
}
}
} else {
alert("Request failed.")
}
});
});
}
else {
alert('Some Problem in getting Geo Location.');
return;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<table style="border: solid 15px blue; width: 100%; vertical-align: central;">
<tr>
<td style="padding-left: 20px; padding-top: 20px; padding-bottom: 20px; background-color: skyblue;
text-align: center; font-family: Verdana; font-size: 20pt; color: Green;">
Draw Route Between User's Current Location & Destination On Google Map
</td>
</tr>
<tr>
<td style="background-color: skyblue; text-align: center; font-family: Verdana; font-size: 14pt;
color: red;">
<b>Enter Destination:</b>
<input type="text" id="txtDestination" value="" style="width: 200px" />
<input type="button" value="Search Route" onclick="SearchRoute()" />
</td>
</tr>
<tr>
<td>
<div id="MyMapLOC" style="width: 550px; height: 470px">
</div>
<div id="MapRoute" style="width: 500px; height: 500px">
</div>
</td>
</tr>
</form>
</body>
</html>