private static List<Document> FilterSearchEventsByLocation(List<Document> documents, double ratioInMiles, string zipCode) { List<Document> documentsToReturn; Dictionary<string, string> coordinatesOrigin; double latitude; double longitude; coordinatesOrigin = Geography.LookupCoordinates(zipCode); documentsToReturn = new List<Document>(); if (coordinatesOrigin != null && coordinatesOrigin.Keys.Contains(Geography.sLatitudeKey) && coordinatesOrigin.Keys.Contains(Geography.sLongitudeKey)) { if (double.TryParse(coordinatesOrigin[Geography.sLatitudeKey], out latitude) && double.TryParse(coordinatesOrigin[Geography.sLongitudeKey], out longitude)) { documentsToReturn = FilterDocumentsByLatitudeAndLongitude(documents, latitude, longitude, ratioInMiles); } else { Sitecore.Diagnostics.Log.Error("SearchEvents - Unable to obtain latitude/longitude for origin location", typeof(EventHelper)); } } return documentsToReturn; }