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Question

 private void gcw_PositionChanged(object sender, GeoPositionChangedEventArgs e)
 {
     // Stop the GeoCoordinateWatcher now that we have the device location. 
     this.gcw.Stop();
     bannerAd.LocationLatitude = e.Position.Location.Latitude;
     bannerAd.LocationLongitude = e.Position.Location.Longitude;
     AdGameComponent.Current.Enabled = true;
 }

Any idea what is causing this error?

 public void CreateAd()
        {
            int width = 480;
            int height = 80;
            int x = (GraphicsDevice.Viewport.Bounds.Width - width) / 2;
            int y = 720;
            bannerAd = adGameComponent.CreateAd(AdUnitId, new Rectangle(x, y, width, height),
              true);
            // Set some visual properties (optional). 
            //bannerAd.BorderEnabled = true; // default is true 
            //bannerAd.BorderColor = Color.White; // default is White 
            //bannerAd.DropShadowEnabled = true; // default is true
            // Provide the location to the ad for better targeting (optional). 
            // This is done by starting a GeoCoordinateWatcher and waiting for the location to 
            // available.
            // The callback will set the location into the ad.
            // Note: The location may not be available in time for the first ad request.
            adGameComponent.Enabled = false;
            this.gcw = new GeoCoordinateWatcher();
            this.gcw.PositionChanged += new
              EventHandler<GeoPositionChangedEventArgs<GeoCoordinate>>
              (gcw_PositionChanged);
            this.gcw.Start();
        }

Error   1   Using the generic type 'System.Device.Location.GeoPositionChangedEventArgs<T>' requires 1 type arguments

&&

Error 2 Using the generic type 'System.Device.Location.GeoPositionChangedEventArgs' requires 1 type arguments

Answer 1

This is how I've always done it.

Declare the format of the delegate, all handlers will use this format

public delegate void gcw_PosChangedEventHandler(GeoPositionChangedEventArgs args);

Declare an event that others can register for

public event gcw_PosChangedEventHandler gcw_PosChanged;

Register for the event

someOtherClass.gcw_PosChanged += this.gcw_PositionChanged;

Make the event occur, by directly firing the event.

// Inside of 'someOtherClass'
gcw_PosChanged(args);

Handle the event that we registered for a couple steps earlier.

private void gcw_PositionChanged(GeoPositionChangedEventArgs args)
{
    // Stop the GeoCoordinateWatcher now that we have the device location. 
    this.gcw.Stop();
    bannerAd.LocationLatitude = e.Position.Location.Latitude;
    bannerAd.LocationLongitude = e.Position.Location.Longitude;
    AdGameComponent.Current.Enabled = true;
}