public async Task<ActionResult> CalculateAsync(TemperatureViewModel viewModel)
{
viewModel.Result = await converter.ConvertAsync(viewModel.Amount, (TemperatureUnit)viewModel.SelectedFrom, (TemperatureUnit)viewModel.SelectedTo);
return View("Index", viewModel);
}
public ActionResult Index()
{
TemperatureViewModel viewModel = new TemperatureViewModel();
return View(viewModel);
}