Fhnw.Ecnf.RoutePlanner.RoutePlannerLib.City.Equals C# (CSharp) Method

        public override bool Equals(object obj)
        {
            // If parameter is null return false.
            if (obj == null)
            {
                return false;
            }
            // If parameter cannot be cast to Point return false.
            var p = obj as City;
            if ((System.Object)p == null)
            {
                return false;
            }
            return this.Equal((City) obj);
        }

 protected Link FindLink(City fromC, City toC, TransportModes mode)
 {
     return((from l in routes
             where mode.Equals(l.TransportMode) &&
             ((fromC.Equals(l.FromCity) && toC.Equals(l.ToCity)) ||
              (toC.Equals(l.FromCity) && fromC.Equals(l.ToCity)))
             select new Link(fromC, toC, l.Distance, TransportModes.Rail)).FirstOrDefault());
 }