c# - 创建配置节处理程序时出错

Question

我有一个定义了自定义部分的 dot.NET 4.0 Web 应用程序:

<configuration>
    <configSections>
    <section name="registrations" type="System.Configuration.IgnoreSectionHandler, System.Configuration, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="true" restartOnExternalChanges="true" allowLocation="true"/>
    ....

在 web.config 文件的末尾，我有相应的部分:

  ....
  <registrations>
    .....
  </registrations>
</configuration>

每次调用 System.Configuration.ConfigurationManager.GetSection("registrations"); 时都会出现以下异常:

An error occurred creating the configuration section handler for registrations: The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047) (C:\...\web.config line 13)

我也在使用 Unity，但不知道这是否与错误有任何关系。

您以前遇到过这个错误吗？我该如何解决？我是否需要用其他东西替换 IgnoreSectionHandler？

Answer 1

鉴于此 app.config:

<?xml version="1.0"?>
<configuration>
    <configSections>
        <section name="registrations" type="MyApp.MyConfigurationSection, MyApp" />
    </configSections>
    <registrations myValue="Hello World" />
</configuration>

然后尝试使用这个:

namespace MyApp
{
    class Program
    {
        static void Main(string[] args) {
            var config = ConfigurationManager.GetSection(MyConfigurationSection.SectionName) as MyConfigurationSection ?? new MyConfigurationSection();

            Console.WriteLine(config.MyValue);

            Console.ReadLine();
        }
    }

    public class MyConfigurationSection : ConfigurationSection
    {
        public const String SectionName = "registrations";

        [ConfigurationProperty("myValue")]
        public String MyValue {
            get { return (String)this["myValue"]; }
            set { this["myValue"] = value; }
        }

    }
}