在configSource中使用外部.config文件会产生错误 [英] Using an external .config file in configSource produces error

问题描述

我一直在研究如何使用配置管理器为C＃中的WPF应用程序读取/写入App.config文件中的自定义部分。我在 .NET 2.0配置神秘化上阅读了这篇出色的文章，它对我有帮助很多使用配置文件。这是我编写的初始App.config文件，它可以正常工作。

I was playing around with how to use the Configuration Manager to read/write custom sections in the App.config file for a WPF application in C#. I read this excellent article on .NET 2.0 Configuration Demystified and it helped me a lot in using the config files. Here is the initial App.config file which I wrote and it works fine.

App.config

App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="example" type="CustomConfig.ExampleSection, CustomConfig" />
  </configSections>
  <example version="A sample string value." />
  <appSettings>
    <add key="version_string" value="1.01" />
  </appSettings>
</configuration>

但是当我更改App.config文件时，将从我的自定义部分读取configSource中提到的一个外部配置文件，Visual Studio给我一个错误

But when I changed the App.config file in such a way that my custom section will be read from an external config file mentioned in configSource, Visual Studio gives me an error

configSource文件的格式必须是包含名称$的元素该部分的b $ b。

The format of a configSource file must be an element containing the name of the section.

这是App.config和example.config文件

Here are the App.config and example.config files

更改了App.config

Changed App.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="example" type="CustomConfig.ExampleSection, CustomConfig" />
  </configSections>
  <example configSource="example.config" />
  <appSettings>
    <add key="version_string" value="1.01" />
  </appSettings>
</configuration>

example.config

example.config

<?xml version="1.0"?>
<example>
    <add key="version" value="blahblah" />
</example>

推荐答案

Visual Studio的编辑器/智能感知有一个缺点抱怨 configSource = 属性-但这是绝对合法的，并且确实有效；我每天都在各种生产系统中使用它。

Visual Studio's editor/intellisense has a shortcoming in that it complains about the configSource= attribute - but it is absolutely legal, and it does work; I use it every day, in various production systems.

我的建议：试试看！ :-)运行代码-我非常确定它可以正常工作（您的配置对我来说不错）。

My recommendation: just try it! :-) Run the code - I'm pretty sure it will work (your configs look OK to me).

更新：确定-好吧，看来您完全改变了< example> 标记的样式。在原始的 app.config 中，您具有：

Update: OK - well it seems you're totally changing the style of the <example> tag. In your original app.config you have:

<example version="A sample string value." />

因此，当然，您的外部化 example.config 必须包含相同的值和相同结构：

So of course, your externalized example.config must contain the same values and the same structure:

<?xml version="1.0"?>
<example version="A sample string value." />

您可以尝试使用此 example.config ??

Can you try with this example.config ??

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