CancellationToken Class

public class CancellationToken : IDisposable

Public Class CancellationToken
	Implements IDisposable

// Create route stops
RouteStop Arena = new RouteStop(new LatLon(34.0720, -117.4962));
RouteStop Depot = new RouteStop(new LatLon(34.1018, -118.2973));
RouteStop Mall = new RouteStop(new LatLon(33.845914, -118.232105));

// Create a route
Route myRoute = new Route();

// Set the route start location
myRoute.Start = Arena;

// Add the route stops
myRoute.AddStops(new RouteStop[] { Depot, Mall });

// Construct a Cancellation Token object.
Telogis.GeoBase.Concurrency.CancellationToken token = new Telogis.GeoBase.Concurrency.CancellationToken();

// Set a thread delay of a tenth of a second then signal a request for cancellation.
System.Threading.Thread cancelAfterDelay = new System.Threading.Thread(() => {
       System.Threading.Thread.Sleep(100);
       token.Cancel();
});

// Start the thread.
   cancelAfterDelay.Start();

// Abort the route calculation.
try { 
       myRoute.GetDirections(token); 
   }

// Catch the exception and display a message. 
catch (RouteCanceledException) {
   MessageBox.Show("The route computation was canceled");
}
cancelAfterDelay.Join();