private void routeTask_Failed(object sender, TaskFailedEventArgs e)
{
string errorMessage = "Routing error: ";
errorMessage += e.Error.Message;
foreach (string detail in (e.Error as ServiceException).Details)
errorMessage += "," + detail;
MessageBox.Show(errorMessage);
if ((_stops.Count) > 10)
{
stopsLayer.Graphics.RemoveAt(stopsLayer.Graphics.Count - 1);
_stops.RemoveAt(_stops.Count - 1);
}
}