使用NameValueSectionHandler类型的自定义sectiongroup对配置对象调用Save

我有一个 Configuration 对象,我可以轻松地从中读取和写入设置并调用 Save(ConfigurationSaveMode.Minimal, true) 这通常很好。

sectionGroup System.Configuration.NameValueSectionHandler (我没有写那部分,我不能改变它)。现在当我打电话给 Save 方法,它抛出一个 TypeLoadException

信息:

类型 不继承自 System.Configuration.ConfigurationSectionGroup .

at System.Configuration.TypeUtil.VerifyAssignableType
      (Type baseType, Type type, Boolean throwOnError)
at System.Configuration.TypeUtil.GetConstructorWithReflectionPermission
      (Type type, Type baseType, Boolean throwOnError)
at System.Configuration.MgmtConfigurationRecord.CreateSectionGroupFactory
      (FactoryRecord factoryRecord)
at System.Configuration.MgmtConfigurationRecord.EnsureSectionGroupFactory
      (FactoryRecord factoryRecord)
at System.Configuration.MgmtConfigurationRecord.GetSectionGroup
      (String configKey)
at System.Configuration.ConfigurationSectionGroupCollection.Get
      (String name)
at System.Configuration.ConfigurationSectionGroupCollection.
      <GetEnumerator>d__0.MoveNext()
at System.Configuration.Configuration.ForceGroupsRecursive
      (ConfigurationSectionGroup group)
at System.Configuration.Configuration.SaveAsImpl
      (String filename, ConfigurationSaveMode saveMode, Boolean forceSaveAll)
at System.Configuration.Configuration.Save
      (ConfigurationSaveMode saveMode, Boolean forceSaveAll)
at MyCompany.MyProduct.blah.blah.Save
      () in C:\\projects\\blah\\blah\\blah.cs:line blah

作为参考,配置如下

<configuration>
  <configSections>
    ... normal sections here that work just fine, followed by ...

    <sectionGroup name="threadSettings" type="System.Configuration.NameValueSectionHandler">
      <section name="T1" type="System.Configuration.DictionarySectionHandler"/>
      <section name="T2" type="System.Configuration.DictionarySectionHandler"/>
      <section name="T3" type="System.Configuration.DictionarySectionHandler"/>
    </sectionGroup>
  </configSections>
  <applicationSettings />
  <threadSettings>
    <T1>
      <add key="key-here" value="value-here"/>
    </T1>
    ... T2 and T3 here as well, thats not interesting ...
  </threadSettings>
</configuration>

保存 很好。

显然,自定义分区组可以设置得更好一点,但我无法解决这个问题,所以我想知道: 对象,如果它具有 NameValueSectionHandler 类型