1. 定义自己的KeyValue
<section name="TestKeyValue" type="System.Configuration.NameValueSectionHandler"></section>
<TestKeyValue>
<add key="aaa" value="aaa"/>
<add key="bbb" value="bbbb"/>
<add key="ccc" value="ccccc"/>
</TestKeyValue>
var testKeyValue = ConfigurationManager.GetSection("TestKeyValue") as System.Collections.Specialized.NameValueCollection;
2. 完全自定义section(类型自定义)
<section name="TEST" type="TestApplication.Test, TestApplication"></section>
<TEST AAA="10">
<BBB CCC="20"></BBB>
<DDD>
<add key="aa" value="aaa"></add>
<add key="bb" value="bbb"></add>
</DDD>
</TEST>
public class Test : ConfigurationSection/
{
[ConfigurationProperty("AAA", IsRequired = true)]
public int AAA
{
get
{
return (int)base["AAA"];
}
set
{
base["AAA"] = value;
}
} [ConfigurationProperty("BBB", IsRequired = false)]
public BBB BBB
{
get
{
return (BBB)base["BBB"];
}
set
{
base["BBB"] = value;
}
} [ConfigurationProperty("DDD", Options = ConfigurationPropertyOptions.IsDefaultCollection, IsRequired = true)]
public NameValueFileCollection DDD
{
get
{
return (NameValueFileCollection)base["DDD"];
}
}
} public class BBB : ConfigurationElement
{
[ConfigurationProperty("CCC", IsRequired = true)]
public int CCC
{
get { return (int)base["CCC"]; }
set { base["CCC"] = value; }
}
} [ConfigurationCollection(typeof(KeyValueConfigurationElement))]
public class NameValueFileCollection : ConfigurationElementCollection
{
new public KeyValueConfigurationElement this[string name]
{
get
{
return (KeyValueConfigurationElement)base.BaseGet(name);
}
}
protected override ConfigurationElement CreateNewElement()
{
return new KeyValueConfigurationElement();
} protected override object GetElementKey(ConfigurationElement element)
{
return ((KeyValueConfigurationElement)element).Key;
}
} public class KeyValueConfigurationElement : ConfigurationElement
{
[ConfigurationProperty("key", IsRequired = true)]
public string Key
{
get { return base["key"].ToString(); }
set { base["key"] = value; }
} [ConfigurationProperty("value", IsRequired = true)]
public string Value
{
get { return base["value"].ToString(); }
set { base["value"] = value; }
}
}
var read = ConfigurationManager.GetSection("TEST") as Test;
3. 定义SectionGroup，SectionGroup不是Collection，里面是多个Section，每个Section按照上面的方式定义，获取取Configuration已有的定义。
<sectionGroup name="SectionGroup" >
<section name="TestGroup" type="TestApplication.TestGroup, TestApplication"/>
<section name="TestGroup2" type="System.Configuration.NameValueSectionHandler"/>
</sectionGroup> <SectionGroup>
<TestGroup>
<add Name="zhangsan" Age="19" Gender="true" />
<add Name="lisi" Age="20" Gender="false" />
<add Name="wangwu" Age="22" Gender="true" />
</TestGroup>
<TestGroup2>
<add key="A" value="aaa"/>
<add key="B" value="bbb"/>
</TestGroup2>
</SectionGroup>
public class TestGroup : ConfigurationSection
{
public static TestGroup FromConfigFile()
{
return (TestGroup)ConfigurationManager.GetSection("SectionGroup");
} [ConfigurationProperty("", DefaultValue = null, IsDefaultCollection = true, IsRequired = false)]
public XDCollection Content
{
get { return (XDCollection)base[new ConfigurationProperty("", typeof(XDCollection), null, ConfigurationPropertyOptions.IsDefaultCollection)]; }
}
} [ConfigurationCollection(typeof(TestGroupElement))]
public class XDCollection : ConfigurationElementCollection
{
new public TestGroupElement this[string name]
{
get { return (TestGroupElement)base[name]; }
} protected override ConfigurationElement CreateNewElement()
{
return new TestGroupElement();
} protected override object GetElementKey(ConfigurationElement element)
{
return ((TestGroupElement)element).Name;
}
} public class TestGroupElement : ConfigurationElement
{
[ConfigurationProperty("Name", DefaultValue = "JLQ", IsRequired = false)]
public string Name { get { return (string)base["Name"]; } set { base["Name"] = value; } } [ConfigurationProperty("Age", DefaultValue = , IsRequired = false)]
public int Age { get { return (int)base["Age"]; } set { base["Age"] = value; } } [ConfigurationProperty("Gender", DefaultValue = false, IsRequired = false)]
public bool Gender { get { return (bool)base["Gender"]; } set { base["Gender"] = value; } }
}
var testGroup = ConfigurationManager.GetSection("SectionGroup/TestGroup") as TestGroup;
var testGroup2 = ConfigurationManager.GetSection("SectionGroup/TestGroup2") as System.Collections.Specialized.NameValueCollection;
4. 继承IConfigurationSectionHandler
<sectionGroup name="companyInfo">
<section name="companyAddress" type="TestApplication.Test3,TestApplication"/>
</sectionGroup>
<companyInfo>
<companyAddress>
<companyName>Axxonet Solutions India Pvt Ltd</companyName>
<doorNo>1301</doorNo>
<street>13th Cross, Indira Nagar, 2nd Stage</street>
<city>Bangalore</city>
<postalCode>560038</postalCode>
<country>India</country>
</companyAddress>
</companyInfo>
public class Test3 : IConfigurationSectionHandler
{
public string CompanyName { get; set; }
public string DoorNo { get; set; }
public string Street { get; set; }
public string City { get; set; }
public int PostalCode { get; set; }
public string Country { get; set; } public object Create(object parent, object configContext, XmlNode section)
{
Test3 one = new Test3();
one.CompanyName = section.SelectSingleNode("companyName").InnerText;
one.DoorNo = section.SelectSingleNode("doorNo").InnerText;
one.Street = section.SelectSingleNode("street").InnerText;
one.City = section.SelectSingleNode("city").InnerText;
one.PostalCode =
Convert.ToInt32(section.SelectSingleNode("postalCode").InnerText);
one.Country = section.SelectSingleNode("country").InnerText;
return one;
}
}
Test3 test3 = (Test3)ConfigurationManager.GetSection("companyInfo/companyAddress");
参考：http://www.codeproject.com/Articles/10981/Understanding-Section-Handlers-App-config-File