如何获得类型NameValueSectionHandler的配置节的值 [英] How to get the values of a ConfigurationSection of type NameValueSectionHandler

问题描述

我用C＃的工作，框架3.5（VS 2008）。

我使用了 ConfigurationManager中来一个配置（不是默认app.config文件）加载到配置对象。

使用配置类，我能得到一个配置节，但我无法找到一个方法来得到部分的值。

在配置中，配置节的类型为 System.Configuration.NameValueSectionHandler 。

对于什么是价值，当我使用的方法 GetSection ，当它是在 ConfigurationManager中（仅我的默认app.config文件），我收到了一个对象类型，我可以投进去对键 - 值的集合，我刚刚收到就像一本字典的值。当我收到我不能做这样的投配置节从配置类然而类。

编辑：
配置文件的例子：

 ＆LT;结构＆gt;
  ＆LT; configSections＆GT;
    ＆lt;节名称=MyParams
             键入=System.Configuration.NameValueSectionHandler/＆GT;
  ＆LT; / configSections＆GT;  ＆LT; MyParams＆GT;
    ＆LT;添加键=FirstParamVALUE =一个/＆GT;
    ＆LT;添加键=SecondParamVALUE =二/＆GT;
  ＆LT; / MyParams＆GT;
＆LT; /结构＆gt;
 

的办法，我能够使用它时，它是对的app.config示例（以下简称GetSection的方法是默认的app.config只）：

 的NameValueCollection myParamsCollection =
             （NameValueCollection中）ConfigurationManager.GetSection（MyParams）;Console.WriteLine（myParamsCollection [FirstParam]）;
Console.WriteLine（myParamsCollection [SecondParam]）;
 

解决方案

<一个href=\"https://web.archive.org/web/20131006233937/http://bloggingabout.net/blogs/jschreuder/archive/2006/07/07/Using-section-handlers-to-group-settings-in-the-configuration-file_2E00_.aspx\"相对=nofollow>下面是好的帖子，显示如何做到这一点。

如果您想从比其他的app.config文件中读取值，则需要将其加载到ConfigurationManager中。

试试这个方法：<一href=\"http://msdn.microsoft.com/en-us/library/system.configuration.configurationmanager.openmappedexeconfiguration%28v=VS.90%29.aspx\"相对=nofollow> ConfigurationManager.OpenMappedExeConfiguration（）

有一个如何的MSDN文章中使用的例子。

I'm working with C#, Framework 3.5 (VS 2008).

I'm using the ConfigurationManager to load a config (not the default app.config file) into a Configuration object.

Using the Configuration class, I was able to get a ConfigurationSection, but I could not find a way to get the values of that section.

In the config, the ConfigurationSection is of type System.Configuration.NameValueSectionHandler.

For what it worth, when I used the method GetSection of the ConfigurationManager (works only when it was on my default app.config file), I received an object type, that I could cast into collection of pairs of key-value, and I just received the value like a Dictionary. I could not do such cast when I received ConfigurationSection class from the Configuration class however.

EDIT: Example of the config file:

<configuration>
  <configSections>
    <section name="MyParams" 
             type="System.Configuration.NameValueSectionHandler" />
  </configSections>

  <MyParams>
    <add key="FirstParam" value="One"/>
    <add key="SecondParam" value="Two"/>
  </MyParams>
</configuration>

Example of the way i was able to use it when it was on app.config (the "GetSection" method is for the default app.config only):

NameValueCollection myParamsCollection =
             (NameValueCollection)ConfigurationManager.GetSection("MyParams");

Console.WriteLine(myParamsCollection["FirstParam"]);
Console.WriteLine(myParamsCollection["SecondParam"]);

解决方案

Here's a good post that shows how to do it.

If you want to read the values from a file other than the app.config, you need to load it into the ConfigurationManager.

Try this method: ConfigurationManager.OpenMappedExeConfiguration()

There's an example of how to use it in the MSDN article.

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