从 app.config configSection 将键值对读入字典 [英] Reading keyvalue pairs into dictionary from app.config configSection

问题描述

我目前在我的应用程序中有一个 app.config，设置如下:

I currently have an app.config in an application of mine set up like so:

 <?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <sectionGroup name="DeviceSettings">
      <section name="MajorCommands" type="System.Configuration.DictionarySectionHandler"/>
    </sectionGroup>
  </configSections>
  <appSettings>
    <add key="ComPort" value="com3"/>
    <add key="Baud" value="9600"/>
    <add key="Parity" value="None"/>
    <add key="DataBits" value="8"/>
    <add key="StopBits" value="1"/>
    <add key="Ping" value="*IDN?"/>
    <add key="FailOut" value="1"/>
  </appSettings>
  <DeviceSettings>
    <MajorCommands>
      <add key="Standby" value="STBY"/>
      <add key="Operate" value="OPER"/>
      <add key="Remote" value="REMOTE"/>
      <add key="Local" value="LOCAL"/>
      <add key="Reset" value="*RST" />
    </MajorCommands>
  </DeviceSettings>
</configuration>

我当前的目标是 foreach 或简单地将 MajorCommands 中的所有值读取到 Dictionary 格式为 Dictionary.我使用 System.Configuration 尝试了几种不同的方法，但似乎都没有工作，而且我无法找到任何关于我的确切问题的详细信息.有什么合适的方法可以做到这一点吗?

My current objective is to foreach or simply read all values from MajorCommands into a Dictionary<string, string> formatted as Dictionary<key, value>. I've tried several different approaches using System.Configuration but none seem to work and I haven't been able to find any details out there for my exact question. Is there any proper way to do this?

推荐答案

使用 ConfigurationManager 类，您可以从 app.config 文件中获取整个部分作为 Hashtable 如果需要，您可以将其转换为 Dictionary:

using ConfigurationManager class you can get whole section from app.config file as Hashtable which you can convert to Dictionary if you want to:

var section = (ConfigurationManager.GetSection("DeviceSettings/MajorCommands") as System.Collections.Hashtable)
                 .Cast<System.Collections.DictionaryEntry>()
                 .ToDictionary(n=>n.Key.ToString(), n=>n.Value.ToString());

您需要添加对System.Configuration 程序集的引用

you'll need to add reference to System.Configuration assembly

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