C#AppSettings:有一种简单的方法可以将集合放入<appSetting>

Question

我试过了

<appSettings >
    <add key="List" value="1"/>
    <add key="List" value="2"/>
    <add key="List" value="3"/>
  </appSettings >

和 System.Configuration.ConfigurationManager.AppSettings.GetValues("List");

但我只得到最后一个成员.我怎么能轻易解决这个问题？

Answer 1

我已经处理了类似的问题,我用这段代码做了.希望这有助于解决您的问题.

在这种情况下,List(类似于我的URLSection)将在web.config中有一个完整的配置部分,您可以从该部分获取所有值.

<configSections>
    <section name="URLSection" type="A.WebConfigSection,A,Version=1.0.0.0,Culture=neutral,PublicKeyToken=null"/>
</configSections>

<appSettings></appSettings>

<URLSection>
    <urlCollection>
        <add url="1" value="a"/>
        <add url="2" value="b"/>
    </urlCollection>
</URLSection>

我为此创建了三个类:ConfigElement,ConfigElementCollection,WebConfigSection.

ConfigElement

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;

namespace A
{
  public class ConfigElement:System.Configuration.ConfigurationElement
{
    [ConfigurationProperty("url",IsRequired=true) ]
    public string url
    {
        get
        {
            return this["url"] as string;
        }
    }

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



  }
}

ConfigElementCollection

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;

namespace A
{
  public class ConfigElementCollection:ConfigurationElementCollection
 {
    public ConfigElement this[int index]
    {
        get
        {
            return base.BaseGet(index) as ConfigElement;
        }

    }

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

    protected override object GetElementKey(ConfigurationElement element)
    {
        return ((ConfigElement)(element)).url;
    }
 }
}

WebConfigSection

using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;

namespace A
{
 public class WebConfigSection:ConfigurationSection
 {

    public WebConfigSection()
    {

    }

    [ConfigurationProperty("urlCollection")]
    public ConfigElementCollection allValues
    {
        get
        {
            return this["urlCollection"] as ConfigElementCollection;
        }
    }

    public static WebConfigSection GetConfigSection()
    {
        return ConfigurationSettings.GetConfig("URLSection") as WebConfigSection;
    }
 }
}