專心寫好程式

方案架構如同上個範例：組態檔 ConfigSection 的使用

此範例在 ConfigSection 內加上 ConfigurationElementCollection
如需多個 ConfigurationElement 不須逐一宣告，用 foreach 就可以逐一取出

ConfigurationDemo中的 App.config 內容如下：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="Demo1" type="ConfigurationDemo.LibData.DemoSection, LibData" />
    <section name="Demo2" type="ConfigurationDemo.LibData.DemoSection, LibData" />
    <section name="Demo3" type="ConfigurationDemo.LibData.DemoSection, LibData" />
  </configSections>
  <Demo1 ID="1" Name="本機" >
    <domain url="localhost" />
    <urls>
      <url host="a.localhost" port="30080" name="本機A" />
      <url host="b.localhost" port="30081" name="本機B" />
      <url host="c.localhost" port="30082" name="本機C" />
    </urls>
  </Demo1>
  <Demo2 ID="2" Name="測試機" >
    <domain url="test.com" />
    <urls>
      <url host="a.test.com" port="8080" name="測試A" />
      <url host="b.test.com" port="8081" name="測試B" />
      <url host="c.test.com" port="8082" name="測試C" />
    </urls>
  </Demo2>
  <Demo3 ID="3" Name="正式機" >
    <domain url="demo.com" />
    <urls>
      <url host="a.demo.com" port="80" name="網址A" />
      <url host="b.demo.com" port="80" name="網址B" />
      <url host="c.demo.com" port="80" name="網址C" />
    </urls>
  </Demo3>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
  </startup>
</configuration>

 

LibData 內容為：

using System.Configuration;

namespace ConfigurationDemo.LibData
{
    public class DemoSection : ConfigurationSection
    {
        [ConfigurationProperty("ID")]
        public int ID
        {
            get { return (int)this["ID"]; }
        }

        [ConfigurationProperty("Name")]
        public string Name
        {
            get { return (string)this["Name"]; }
        }

        [ConfigurationProperty("domain")]
        public DomainElement Domain
        {
            get { return this["domain"] as DomainElement; }
        }

        [ConfigurationProperty("urls")]
        [ConfigurationCollection(typeof(UrlElement), AddItemName = "url")]
        public UrlsElementColection Urls
        {
            get { return this["urls"] as UrlsElementColection; }
        }
    }


    public class UrlsElementColection : ConfigurationElementCollection
    {
        public UrlElement this[int index]
        {
            get { return (UrlElement)this.BaseGet(index); }
        }

        protected override ConfigurationElement CreateNewElement()
        {
            return new UrlElement();
        }

        protected override object GetElementKey(ConfigurationElement element)
        {
            return (element as UrlElement).Host;
        }
    }

    public class UrlElement : ConfigurationElement
    {
        [ConfigurationProperty("host")]
        public string Host
        {
            get { return this["host"] as string; }
        }

        [ConfigurationProperty("port")]
        public string Port
        {
            get { return this["port"] as string; }
        }

        [ConfigurationProperty("name")]
        public string Name
        {
            get { return this["name"] as string; }
        }
    }

    public class DomainElement : ConfigurationElement
    {
        [ConfigurationProperty("url")]
        public string Url
        {
            get { return this["url"] as string; }
        }
    }
}

 

ConfigurationDemo > Program.cs 執行程式的語法 如下：

using ConfigurationDemo.LibData;
using System;
using System.Configuration;

namespace ConfigurationDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            DemoSection ds1 = ConfigurationManager.GetSection("Demo1") as DemoSection;
            PrintSiteSection(ds1);
            Console.WriteLine();

            DemoSection ds2 = ConfigurationManager.GetSection("Demo2") as DemoSection;
            PrintSiteSection(ds2);
            Console.WriteLine();

            DemoSection ds3 = ConfigurationManager.GetSection("Demo3") as DemoSection;
            PrintSiteSection(ds3);

            Console.ReadLine();
        }

        public static void PrintSiteSection(DemoSection section)
        {
            Console.WriteLine($"SectionName:{section.SectionInformation.Name}\tid:{section.ID}\tname:{section.Name}");
            Console.WriteLine("└ElementName:" + nameof(section.Domain));
            PrintDomainElement(section.Domain);
            Console.WriteLine("└UrlsName:" + nameof(section.Urls));
            PrintUrlsElementColection(section.Urls);
        }

        public static void PrintDomainElement(DomainElement element)
        {
            Console.WriteLine($" └─Url:{element.Url}");
        }

        public static void PrintUrlsElementColection(UrlsElementColection elementCollection)
        {
            foreach (UrlElement element in elementCollection)
            {
                PrintUrlElement(element);
            }
        }

        public static void PrintUrlElement(UrlElement element)
        {
            Console.WriteLine($" └─Host:{element.Host}\tPort:{element.Port}\tName:{element.Name}");
        }
    }
}

 

執行結果：