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GeoCoordinateWatcher.OnPositionChanged Method

Called when a PositionChanged event occurs.

Namespace:  System.Device.Location
Assembly:  System.Device (in System.Device.dll)

protected void OnPositionChanged(
	GeoPositionChangedEventArgs<GeoCoordinate> e
)

The following program shows how to subscribe to continuous updates from PositionChanged events.

using System;
using System.Device.Location;

namespace GetLocationEvent
{
    class Program
    {
        static void Main(string[] args)
        {
            CLocation myLocation = new CLocation();
            myLocation.GetLocationEvent();
            Console.WriteLine("Enter any key to quit.");
            Console.ReadLine();            
        }
        class CLocation
        {
            GeoCoordinateWatcher watcher;

            public void GetLocationEvent()
            {
                this.watcher = new GeoCoordinateWatcher();
                this.watcher.PositionChanged += new EventHandler<GeoPositionChangedEventArgs<GeoCoordinate>>(watcher_PositionChanged);
                bool started = this.watcher.TryStart(false, TimeSpan.FromMilliseconds(2000));
                if (!started)
                {
                    Console.WriteLine("GeoCoordinateWatcher timed out on start.");
                }
            }

            void watcher_PositionChanged(object sender, GeoPositionChangedEventArgs<GeoCoordinate> e)
            {
                PrintPosition(e.Position.Location.Latitude, e.Position.Location.Longitude);
            }

            void PrintPosition(double Latitude, double Longitude)
            {
                Console.WriteLine("Latitude: {0}, Longitude {1}", Latitude, Longitude);
            }
        }
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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