关于C#Section配置未初始化的问题

转载

https://www.cnblogs.com/lxshwyan/p/10828305.html

如果使用了configSection节点，则configSection必须位于根节点的第0个。App.config中代码如下：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="CustomerSingleConfig" type="ConfiguraDemo.CustomerSingleConfig,ConfiguraDemo"/>
  </configSections>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
  </startup>
  <CustomerSingleConfig PlatChName="监控平台系统" PlatEnName="Monitoring platform system"></CustomerSingleConfig>
</configuration>

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConfiguraDemo
{
    public class CustomerSingleConfig : ConfigurationSection
    {
        /// <summary>
        /// 获取配置信息
        /// </summary>
        /// <returns></returns>
        public static CustomerSingleConfig GetConfig()
        {
            return GetConfig("CustomerSingleConfig");
        }
        private static CustomerSingleConfig GetConfig(string sectionName)
        {
            try
            {
                CustomerSingleConfig section = (CustomerSingleConfig)ConfigurationManager.GetSection(sectionName);
                if (section == null)
                    throw new ConfigurationErrorsException("Section " + sectionName + " is not found.");
                return section;
            }
            catch (Exception ex)
            {
                throw new ConfigurationErrorsException("Section " + ex.Message);
            }
        }

        /// <summary>
        /// 平台中文名称
        /// </summary>
        [ConfigurationProperty("PlatChName", DefaultValue = "", IsRequired = true, IsKey = false)]
        public string PlatChineseName
        {
            get { return (string)this["PlatChName"]; }
            set { this["PlatChName"] = value; }
        }
        /// <summary>
        /// 平台英文名称
        /// </summary>
        [ConfigurationProperty("PlatEnName", DefaultValue = "", IsRequired = true, IsKey = false)]
        public string PlatEnglishName
        {
            get { return (string)this["PlatEnName"]; }
            set { this["PlatEnName"] = value; }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConfiguraDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("---------------------单级配置节点测试-----------------");
            Console.WriteLine("PlatChName:" + CustomerSingleConfig.GetConfig().PlatChineseName);
            Console.WriteLine("PlatEnName:" + CustomerSingleConfig.GetConfig().PlatEnglishName);
            Console.ReadKey();
        }
    }
}

输出结果

---------------------单级配置节点测试-----------------
PlatChName:监控平台系统
PlatEnName:Monitoring platform system

继承ConfigurationSection需要添加System.Configuration引用