无法在asp.net操作筛选器中获取自定义属性

using System;
using System.Reflection;
using Microsoft.AspNetCore.Mvc.Filters;

public class CustomFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext context)
    {
        // 获取当前执行的控制器或动作方法的信息
        var controllerType = context.Controller.GetType();
        var actionMethodInfo = controllerType.GetMethod(context.ActionDescriptor.ActionName);

        // 获取控制器或动作方法上的自定义属性
        var customAttributes = actionMethodInfo.GetCustomAttributes(typeof(CustomAttribute), true);

        // 处理自定义属性
        foreach (var attribute in customAttributes)
        {
            // 进行相应的处理逻辑
        }

        base.OnActionExecuting(context);
    }
}

[Custom]
public class HomeController : Controller
{
    [Custom]
    public IActionResult Index()
    {
        return View();
    }
}