public async Task <GeoLocationCity> PostalCodeToLocationAsync(int postalCode)
{
var tcs = new TaskCompletionSource <GeoLocationCity>();
var result = await TaskEx.Run <GeoLocationCity>(() =>
{
var query = PostalCodes.Where(item => item.PostalCode == postalCode).FirstOrDefault();
if (query == null)
{
return(GeoLocationCity.UnkownCity());
}
return(query);
});
return(result);
}
public async Task <GeoLocationCity> LocationToPostalCodeAsync(GeoCoordinate location)
{
var tcs = new TaskCompletionSource <GeoLocationCity>();
var result = await TaskEx.Run <GeoLocationCity>(() =>
{
var query = PostalCodes
.OrderBy(item => item.Location.GetDistanceTo(location))
.FirstOrDefault();
if (query == null)
{
return(GeoLocationCity.UnkownCity());
}
return(query);
});
return(result);
}