如何在字典中检索第N个项目? [英] How to retrieve Nth item in dictionary?

问题描述

可能重复:
如何从字典中获得第n个元素?

Possible Duplicate:
How do I get the nth element from a Dictionary?

如果一个Dictionary总共有Y个项目，而当N<时我们需要第N个项目. Y那么如何实现呢?

If there's a Dictionary with total of Y items and we need Nth item when N < Y then how to achieve this?

示例:

Dictionary<int, string> items = new Dictionary<int, string>();

items.add(2, "Bob");
items.add(5, "Joe");
items.add(9, "Eve");

// We have 3 items in the dictionary.
// How to retrieve the second one without knowing the Key?

string item = GetNthItem(items, 2);

如何编写GetNthItem()?

推荐答案

字典未排序.没有第n个项目.

Dictionary isn't ordered. There is no nth item.

使用OrderedDictionary和Item()

Use OrderedDictionary and Item()

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