关于c＃4.0：如何在app.config中创建自定义配置节

How to create custom config section in app.config

我想在app.config文件中添加自定义配置部分，如下所示

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在"部门"部分，它指的是"项目"部分。

有人能告诉我怎么做吗？如何在我的代码中访问它？

@Bhaskar：请找到你的评论代码。

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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")]
public Companies Companies
{
get
{
object o = this["Companies"]; return o as Companies;
}
}
}

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);
}
}

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

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

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; } }
}