ASP.NET MVC:在哪里放置填充共享视图的代码？

public class HomeController : Controller
{
    private readonly ISharedDataService _sharedDataService;

    public HomeController(ISharedDataService sharedDataService)
    {
        _sharedDataService = sharedDataService;
    }

    public IActionResult Index()
    {
        var sharedData = _sharedDataService.GetSharedData();
        // 使用共享数据填充视图
        return View(sharedData);
    }
}

public class SharedDataFilter : IActionFilter
{
    private readonly ISharedDataService _sharedDataService;

    public SharedDataFilter(ISharedDataService sharedDataService)
    {
        _sharedDataService = sharedDataService;
    }

    public void OnActionExecuting(ActionExecutingContext context)
    {
        var sharedData = _sharedDataService.GetSharedData();
        // 将共享数据存储在上下文中，以便在视图中使用
        context.HttpContext.Items["SharedData"] = sharedData;
    }

    public void OnActionExecuted(ActionExecutedContext context)
    {
        // 在动作方法执行后可以进行一些清理工作
    }
}