阅读web.config部分，列出 [英] Read web.config section to List

问题描述

我有这个在web.config中：

I have this in a web.config :

<MySection>
    <Setting1 Value="10" />
    <Setting2 Value="20" />
    <Setting3 Value="30" />
    <Setting4 Value="40" />
</MySection>

我想读的所有部分MySection，并获得所有的值设置为名单，其中，串＆GT; （例如：10，20，30 ）

I'd like read the all section "MySection" and get all value to a List<string> (ex : "10","20","30")

谢谢

推荐答案

首先，我建议用使用<一个href="http://msdn.microsoft.com/en-us/library/microsoft.practices.enterpriselibrary.common.configuration%28PandP.50%29.aspx"相对=nofollow>统一配置。

code：

public class MySection : ConfigurationSection
{
    protected static ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection();

    private static ConfigurationProperty propElements = new ConfigurationProperty("elements", typeof(MyElementCollection), null, ConfigurationPropertyOptions.IsRequired | ConfigurationPropertyOptions.IsDefaultCollection);

    static BotSection()
    {
        properties.Add(propElements);
    }

    [ConfigurationProperty("elements", DefaultValue = null, IsRequired = true)]
    [ConfigurationCollection(typeof(MyElementCollection), AddItemName = "add", ClearItemsName = "clear", RemoveItemName = "remove")]
    public MyElementCollection Elements
    {
        get
        {
            return (MyElementCollection)this[propElements];
        }
        set
        {
            this[propElements] = value;
        }
    }
}

public class MyElementCollection : ConfigurationElementCollection, 
                                   IEnumerable<ConfigurationElement> // most important difference with default solution
{
    public void Add(MyElement element)
    {
        base.BaseAdd(element);
    }

    public void Clear()
    {
        base.BaseClear();
    }

    protected override ConfigurationElement CreateNewElement()
    {
        return new MyElement();
    }

    protected override object GetElementKey(ConfigurationElement element)
    {
        return ((MyElement)element).Id;
    }

    IEnumerator<MyElement> IEnumerable<MyElement>.GetEnumerator()
    {
        return this.OfType<MyElement>().GetEnumerator();
    }
}

public class MyElement : ConfigurationElement
{
    protected static ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection();

    private static ConfigurationProperty propValue= new ConfigurationProperty("value", typeof(int), -1, ConfigurationPropertyOptions.IsRequired);

    public int Value
    {
        get
        {
            return (int)this[propValue];
        }
        set
        {
            this[propValue] = value;
        }
    }
}

配置：

<configuration>
    <configSections>
        <section name="MySection" type="MySection, MyAssembly"/>
    </configSections>
    <MySection>
        <elements>
            <clear />
            <add value="10" />
            <remove value="10" />
            <add value="20" />
            <add value="30" />
        </elements>
    </MySection>
</configuration>

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