AnyPlace.MainPage.ReadPoisByBuildingFromIsolatedStorage C# (CSharp) Method

        private void ReadPoisByBuildingFromIsolatedStorage(string directory)
        {

            var settings1 = IsolatedStorageFile.GetUserStoreForApplication();
            if (settings1.FileExists(directory + "/PoisByBuilding"))
            {
                using (var fileStream = settings1.OpenFile(directory + "/PoisByBuilding", FileMode.Open))
                {
                    var serializer = new DataContractSerializer(typeof(PoisByBuilding));
                    _poisByBuilding = (PoisByBuilding)serializer.ReadObject(fileStream);
                }
            }
        }