关于C#：如何在app.config中创建自定义配置节？

How to create custom config section in app.config?

本问题已经有最佳答案，请猛点这里访问。

我想在我的app.config文件中添加一个自定义配置部分。有没有一种方法可以做到这一点，以及如何在我的程序中访问这些设置？下面是我要添加到我的app.config中的配置部分：

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创建配置元素公司：

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public class Company : ConfigurationElement
{

[ConfigurationProperty("name", IsRequired = true)]
public string Name
{
get
{
return this["name"] as string;
}
}
[ConfigurationProperty("code", IsRequired = true)]
public string Code
{
get
{
return this["code"] as string;
}
}
}

配置元素集合：

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public class Companies
: ConfigurationElementCollection
{
public Company this[int index]
{
get
{
return base.BaseGet(index) as Company ;
}
set
{
if (base.BaseGet(index) != null)
{
base.BaseRemoveAt(index);
}
this.BaseAdd(index, value);
}
}

public new Company this[string responseString]
{
get { return (Company) BaseGet(responseString); }
set
{
if(BaseGet(responseString) != null)
{
BaseRemoveAt(BaseIndexOf(BaseGet(responseString)));
}
BaseAdd(value);
}
}

protected override System.Configuration.ConfigurationElement CreateNewElement()
{
return new Company();
}

protected override object GetElementKey(System.Configuration.ConfigurationElement element)
{
return ((Company)element).Name;
}
}

和配置部分：

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public class RegisterCompaniesConfig
: ConfigurationSection
{

public static RegisterCompaniesConfig GetConfig()
{
return (RegisterCompaniesConfig)System.Configuration.ConfigurationManager.GetSection("RegisterCompanies") ?? new RegisterCompaniesConfig();
}

[System.Configuration.ConfigurationProperty("Companies")]
[ConfigurationCollection(typeof(Companies), AddItemName ="Company")]
public Companies Companies
{
get
{
object o = this["Companies"];
return o as Companies ;
}
}

}

您还必须在web.config(app.config)中注册新的配置部分：

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然后加载配置

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var config = RegisterCompaniesConfig.GetConfig();
foreach(var item in config.Companies)
{
do something ..
}