自定义app.config节点(原创) 中庸

     前些天，做过自定义app.config节点的小测试.今天看的时候，把无关的代码去掉,用最少的代码说明问题.以下实例是通过继承ConfigurationSection实现的

 一.效果如下

 <?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="CustomSection" type="CustomSectionTest.CLSCustomSection, CustomSectionTest" />
  </configSections>
  <CustomSection fileName="default.txt" maxUsers="1000" maxIdleTime="00:15:00" />
</configuration>
二.代码

    1.自定义类代码方法一

       

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

namespace CustomSectionTest
{
    public sealed class CLSCustomSection : ConfigurationSection
    {
 
        private  ConfigurationPropertyCollection _Properties;

        private readonly ConfigurationProperty _FileName =
            new ConfigurationProperty("fileName",
            typeof(string), "default.txt",
            ConfigurationPropertyOptions.IsRequired);

        private readonly ConfigurationProperty _MaxUsers =
            new ConfigurationProperty("maxUsers",
            typeof(long), (long)1000,
            ConfigurationPropertyOptions.None);

        private  readonly ConfigurationProperty _MaxIdleTime =
            new ConfigurationProperty("maxIdleTime",
            typeof(TimeSpan), TimeSpan.FromMinutes(5),
            ConfigurationPropertyOptions.IsRequired);
        public CLSCustomSection()
        {
            _Properties =
                new ConfigurationPropertyCollection();

            _Properties.Add(_FileName);
            _Properties.Add(_MaxUsers);
            _Properties.Add(_MaxIdleTime);
        }


        protected override ConfigurationPropertyCollection Properties
        {
            get
            {
                return _Properties;
            }
        }

        public string FileName
        {
            get
            {
                return (string)this["fileName"];
            }
            set
            {
                this["fileName"] = value;
            }
        }

        public long MaxUsers
        {
            get
            {
                return (long)this["maxUsers"];
            }
            set
            {
                this["maxUsers"] = value;
            }
        }

        public TimeSpan MaxIdleTime
        {
            get
            {
                return (TimeSpan)this["maxIdleTime"];
            }
            set
            {
                this["maxIdleTime"] = value;
            }
        }
    }
}

         自定义类方法二

             

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

namespace CustomSectionTest
{
    public sealed class CLSCustomSection : ConfigurationSection
    {
        [ConfigurationProperty("fileName",
        DefaultValue = "default.txt",
        IsRequired = true)]
        public string FileName
        {
            get
            {
                return (string)this["fileName"];
            }
            set
            {
                this["fileName"] = value;
            }
        }
        [ConfigurationProperty("maxUsers",
          DefaultValue = "1000",
          IsRequired = false)]
        public long MaxUsers
        {
            get
            {
                return (long)this["maxUsers"];
            }
            set
            {
                this["maxUsers"] = value;
            }
        }

        [ConfigurationProperty("maxIdleTime",
       DefaultValue = "00:15:00",
       IsRequired = false)]
        public TimeSpan MaxIdleTime
        {
            get
            {
                return (TimeSpan)this["maxIdleTime"];
            }
            set
            {
                this["maxIdleTime"] = value;
            }
        }
    }
}

    2.调用测试

     CLSCustomSection customsection =(CLSCustomSection)ConfigurationManager.GetSection("CustomSection");
     MessageBox.Show(customsection.FileName);