如何向IList添加"查找"功能

public class SearchableList<T> : IList<T>
{
    private IList<T> list;

    public SearchableList()
    {
        list = new List<T>();
    }

    public T this[int index]
    {
        get { return list[index]; }
        set { list[index] = value; }
    }

    public int Count => list.Count;

    public bool IsReadOnly => list.IsReadOnly;

    public void Add(T item)
    {
        list.Add(item);
    }

    public void Clear()
    {
        list.Clear();
    }

    public bool Contains(T item)
    {
        return list.Contains(item);
    }

    public void CopyTo(T[] array, int arrayIndex)
    {
        list.CopyTo(array, arrayIndex);
    }

    public IEnumerator<T> GetEnumerator()
    {
        return list.GetEnumerator();
    }

    public int IndexOf(T item)
    {
        return list.IndexOf(item);
    }

    public void Insert(int index, T item)
    {
        list.Insert(index, item);
    }

    public bool Remove(T item)
    {
        return list.Remove(item);
    }

    public void RemoveAt(int index)
    {
        list.RemoveAt(index);
    }

    public IList<T> Search(T item)
    {
        IList<T> searchResults = new List<T>();

        foreach (T element in list)
        {
            // 根据需要实现具体的查找逻辑
            if (element.Equals(item))
            {
                searchResults.Add(element);
            }
        }

        return searchResults;
    }
}

SearchableList<string> searchableList = new SearchableList<string>();
searchableList.Add("Apple");
searchableList.Add("Banana");
searchableList.Add("Orange");

IList<string> searchResults = searchableList.Search("Banana");
foreach (string result in searchResults)
{
    Console.WriteLine(result);
}

Banana