Index action and view are modified in HomeController to use lazy dependency

HomeController.cs

// HomeController.cs
public class HomeController : Controller
{
    private readonly ILogger<HomeController> _logger;
    private readonly Lazy<ICreatedOnDateTimeService> lazyService;

    public HomeController(ILogger<HomeController> logger, Lazy<ICreatedOnDateTimeService> lazyService)
    {
        _logger = logger;
        this.lazyService = lazyService;
    }

    public IActionResult Index([FromQuery]bool create = false)
    {
        ViewData["IsValueCreated"] = this.lazyService.IsValueCreated;

        if (create)
        {
            ViewData["CreatedOn"] = this.lazyService.Value.CreatedOn;
        }

        return View();
    }
}

// Index.cshtml
@{
    ViewData["Title"] = "Home Page";
}

<div class="text-center">
    <h1 class="display-4">Welcome</h1>
    <p>Learn about delayed instantiation with .NET dependency injection</p>
    <div class="card" style="margin-top:2rem; width: 40rem">
        <div class="card-header">
            Created On Time
        </div>
        <ul class="list-group list-group-flush">
            <li class="list-group-item text-left"><strong>Dependency.IsValueCreated:</strong> @ViewData["IsValueCreated"]</li>
            <li class="list-group-item text-left"><strong>Dependency.Value.CreatedOn:</strong>  @ViewData["CreatedOn"]</li>
        </ul>
    </div>
</div>