c# ConfigurationSection

怎么把自己的配置文件配置到app.config中？

• 方案1：在app.config中添加

 <!--应用配置-->
  <appSettings configSource="Conf\AppSettings.config" />

如果我需要自己定义单独的多个配置文件，又该怎么处理才可以把配置文件添加app.config中呢？

• 方案2：定义ConfigurationSection类

MyConfigurationSection  

 public class MyConfigurationSection : ConfigurationSection
 {
     [ConfigurationProperty("", IsDefaultCollection = true)]
     public KeyValueConfigurationElementCollection My
     {
         get { return (KeyValueConfigurationElementCollection)base[""]; }
     }

     public string GetValueByKey(string key)
     {
         foreach (KeyValueConfigurationElement item in this.My)
         {
             if (item.Key == key)
                 return item.Value;
         }

         return string.Empty;
     }

     //[ConfigurationProperty("configSource", IsRequired = false)]
     //public string ConfigSource
     //{
     //    get { return (string)base["configSource"]; }
     //    set
     //    {
     //        base["configSource"] = value;
     //    }
     //}
 }

KeyValueConfigurationElementCollection

 public class KeyValueConfigurationElementCollection : ConfigurationElementCollection
 {
     protected override ConfigurationElement CreateNewElement()
     {
         return new KeyValueConfigurationElement();
     }

     protected override object GetElementKey(ConfigurationElement element)
     {
         return (element as KeyValueConfigurationElement).Key;
     }

     public override ConfigurationElementCollectionType CollectionType
     {
         get { return ConfigurationElementCollectionType.BasicMap; }
     }

     protected override string ElementName
     {
         get { return "add"; }
     }
 }

KeyValueConfigurationElement

 public class KeyValueConfigurationElement : ConfigurationElement
 {
     [ConfigurationProperty("key", IsRequired = true)]
     public string Key
     {
         get { return (string)base["key"]; }
         set { base["key"] = value; }
     }

     [ConfigurationProperty("value", IsRequired = true)]
     public string Value
     {
         get { return (string)base["value"]; }
         set { base["value"] = value; }
     }
 }

修改app.config配置文件：

<configSections>
    <section name="my" type="DTCore.MyConfigurationSection,DTCore"/>
</configSections>

<mre configSource="Conf\My_Settings.config" />

Conf\My_Settings.config

 <?xml version="1.0" encoding="utf-8"?>
 <my>
   <add key="DT.AKey" value="c key"/>
   <add key="DT.CKey.RIPPRB" value="the value"/>
 </my>

怎么调用：

 MyConfigurationSection mySection=(MyConfigurationSection)ConfigurationManager.GetSection("my");
 string value=mySection.GetValueByKey("DT.AKey");