Spring.net注入字典顺序问题？ [英] Spring.net inject dictionary order question?

问题描述

我使用spring.net以此顺序注入字典< string，string>

I use spring.net inject a Dictionary<string,string> in this order:

<object id="dictLang" type="System.Collections.Generic.Dictionary&lt;string,string&gt;">
  <constructor-arg>
    <dictionary key-type="string" value-type="string" merge="0">
      <entry key="zh-CN" value="中文" />
      <entry key="en-US" value="英文" />
      <entry key="th-TH" value="泰文" />
    </dictionary>
  </constructor-arg>
</object>

当我使用foreach来迭代它，它会输出：

When I use foreach to iterate it, it outputs this:

code=en-US,name=英文
code=th-TH,name=泰文
code=zh-CN,name=中文

我发现它是按键订单，
我如何保持订单，因为我注意吗？

I found it is ordered by the key, how can I keep the order as I injected it?

手动创建字典时：

Dictionary<string, string> dic = new Dictionary<string, string>();
            dic.Add("zh-CN", "中文");
            dic.Add("en-US", "英文");
            dic.Add("th-TH", "泰文");

当我重复它是相同的顺序，这很奇怪！

It is the same order when I iterate it, that's weird!

我曾考虑过使用 OrderedDictionary ，但我不知道如何注入。

I thought about using OrderedDictionary, but I don't know how to inject.

推荐答案

Generic.Dictionary< K，V> 是由 pfm ，不能依赖 - spring.net的注入导致一个稍微不同的键迭代顺序（也许一个似乎要排序）只是运气，不能依赖。

Any "ordering" of Generic.Dictionary<K,V> is by pfm and cannot be relied upon -- the fact that spring.net's injection leads to a slightly different key iteration order (perhaps one that seems to be sorted) is just luck and cannot be relied upon.

请注意，注入的字典作为构造函数参数传递了一个IDictionary本身，使其与手动代码不同。比较：

Notice that the injected dictionary was passed an IDictionary itself as the constructor argument making it not identical to the manual code. Compare it with:

Dictionary<string, string> temp = new Dictionary<string, string>();
temp.Add("zh-CN", "中文");
temp.Add("en-US", "英文");
temp.Add("th-TH", "泰文");
Dictionary<string, string> dic = new Dictionary<string, string>(temp);

即使上述不能产生与spring.net相同的密钥迭代顺序，它有可能还有其他因素，例如不同的默认容量 fortemp。

Even if the above doesn't yield the same key iteration order as that of spring.net, it is possible that there are other factors at play, such as a different default capacity for "temp".

然而，我无法回答OrderedDictionary部分。 （大多数专业系列都是非常压倒性的。）

I cannot answer the "OrderedDictionary" part, however. (Most of the "specialized" collections are very underwhelming.)

快乐编码。

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