在.NET中限制Queue <T>的大小？

public class BoundedQueue<T> : Queue<T>
{
    public int MaxCapacity { get; }

    public BoundedQueue(int maxCapacity)
    {
        MaxCapacity = maxCapacity;
    }

    public new void Enqueue(T item)
    {
        if (Count >= MaxCapacity)
        {
            throw new InvalidOperationException("Queue is full");
        }

        base.Enqueue(item);
    }
}

var boundedQueue = new BoundedQueue<int>(5);

for (int i = 0; i < 5; i++)
{
    boundedQueue.Enqueue(i);
}

boundedQueue.Enqueue(5); // 抛出异常：Queue is full