如何在 app.config 中创建自定义配置部分?

问题描述

我想在我的 app.config 文件中添加自定义配置部分.有没有办法做到这一点，以及如何在我的程序中访问这些设置.以下是我想添加到我的 app.config 的配置部分:

<公司><公司名称=塔塔汽车"代码=塔塔"/><公司名称=本田汽车"代码=本田"/></公司></注册公司>

解决方案

导入命名空间:

使用 System.Configuration;

创建 ConfigurationElement 公司:

公共类公司:ConfigurationElement{[ConfigurationProperty("name", IsRequired = true)]公共字符串名称{得到{将 this["name"] 作为字符串返回；}}[ConfigurationProperty("code", IsRequired = true)]公共字符串代码{得到{将 this["code"] 作为字符串返回；}}}

配置元素集合:

公共类公司: 配置元素集合{上市公司 this[int index]{得到{返回 base.BaseGet(index) 作为 Company ；}放{if (base.BaseGet(index) != null){base.BaseRemoveAt(index);}this.BaseAdd(index, value);}}public new Company this[string responseString]{得到{返回(公司)BaseGet(响应字符串)；}放{if(BaseGet(responseString) != null){BaseRemoveAt(BaseIndexOf(BaseGet(responseString)));}基础添加(值)；}}受保护的覆盖 System.Configuration.ConfigurationElement CreateNewElement(){返回新公司()；}受保护的覆盖对象 GetElementKey(System.Configuration.ConfigurationElement 元素){return ((Company)element).Name;}}

和配置部分:

公共类 RegisterCompaniesConfig: 配置部分{公共静态 RegisterCompaniesConfig GetConfig(){返回 (RegisterCompaniesConfig)System.Configuration.ConfigurationManager.GetSection("RegisterCompanies") ??新注册公司配置()；}[System.Configuration.ConfigurationProperty("公司")][ConfigurationCollection(typeof(Companies), AddItemName = "Company")]上市公司 公司{得到{对象 o = this["公司"];返回 o 作为公司；}}}

并且您还必须在 web.config (app.config) 中注册您的新配置部分:

<configSections><section name="Companies" type="blablabla.RegisterCompaniesConfig" ..>

然后你加载你的配置

var config = RegisterCompaniesConfig.GetConfig();foreach(config.Companys 中的 var 项目){做点什么 ..}

I want to add a custom configuration section in my app.config file.Is there a way to do it and how can I access these settings in my program.Following is the config section I want to add to my app.config:

<RegisterCompanies>
    <Companies>
      <Company name="Tata Motors" code="Tata"/>
      <Company name="Honda Motors" code="Honda"/>
    </Companies>
</RegisterCompanies>

解决方案

Import namespace :

using System.Configuration;

Create ConfigurationElement Company :

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;
            }
        }
}

ConfigurationElementCollection:

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);
            }
        }

       public new Company this[string responseString]
       {
            get { return (Company) BaseGet(responseString); }
            set
            {
                if(BaseGet(responseString) != null)
                {
                    BaseRemoveAt(BaseIndexOf(BaseGet(responseString)));
                }
                BaseAdd(value);
            }
        }

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

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

and ConfigurationSection:

public class RegisterCompaniesConfig
        : ConfigurationSection
    {

        public static RegisterCompaniesConfig GetConfig()
        {
            return (RegisterCompaniesConfig)System.Configuration.ConfigurationManager.GetSection("RegisterCompanies") ?? new RegisterCompaniesConfig();
        }

        [System.Configuration.ConfigurationProperty("Companies")]
            [ConfigurationCollection(typeof(Companies), AddItemName = "Company")]
        public Companies Companies
        {
            get
            {
                object o = this["Companies"];
                return o as Companies ;
            }
        }

    }

and you must also register your new configuration section in web.config (app.config):

<configuration>
    <configSections>
          <section name="Companies" type="blablabla.RegisterCompaniesConfig" ..>

then you load your config with

var config = RegisterCompaniesConfig.GetConfig();
foreach(var item in config.Companies)
{
   do something ..
}

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