自定义 app.config 配置部分处理程序

问题描述

如果我使用这样的 app.config，通过继承自 System.Configuration.Section 的类获取页面"列表的正确方法是什么?

What is the correct way to pick up the list of "pages" via a class that inherits from System.Configuration.Section if I used a app.config like this?

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <configSections>
    <section name="XrbSettings" type="Xrb.UI.XrbSettings,Xrb.UI" />
  </configSections>

  <XrbSettings>
    <pages>
      <add title="Google" url="http://www.google.com" />
      <add title="Yahoo" url="http://www.yahoo.com" />
    </pages>
  </XrbSettings>

</configuration>

推荐答案

首先在扩展 Section 的类中添加一个属性:

First you add a property in the class that extends Section:

[ConfigurationProperty("pages", IsDefaultCollection = false)]
[ConfigurationCollection(typeof(PageCollection), AddItemName = "add")]
public PageCollection Pages {
    get {
        return (PageCollection) this["pages"];
    }
}

然后你需要创建一个 PageCollection 类.我看到的所有示例都非常相似，因此只需复制 这个 并将NamedService"重命名为Page".

Then you need to make a PageCollection class. All the examples I've seen are pretty much identical so just copy this one and rename "NamedService" to "Page".

最后添加一个扩展ObjectConfigurationElement的类:

Finally add a class that extends ObjectConfigurationElement:

public class PageElement : ObjectConfigurationElement {
    [ConfigurationProperty("title", IsRequired = true)]
    public string Title {
        get {
            return (string) this["title"];
        }
        set {
            this["title"] = value;
        }
    }

    [ConfigurationProperty("url", IsRequired = true)]
    public string Url {
        get {
            return (string) this["url"];
        }
        set {
            this["url"] = value;
        }
    }
}

以下是示例实现中的一些文件:

Here are some files from a sample implementation:

• 示例配置
• 集合和元素类
• 配置节类

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