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POHow to implement a ConfigurationSection with a ConfigurationElementCollection
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  1. POHow to implement a ConfigurationSection with a ConfigurationElementCollection
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    copied!<p>I am trying to implement a custom configuration section in a project and I keep running up against exceptions that I do not understand. I am hoping someone can fill in the blanks here. </p> <p>I have <code>App.config</code> that looks like this: </p> <pre class="lang-xml prettyprint-override"><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt; &lt;configuration&gt; &lt;configSections&gt; &lt;section name="ServicesSection" type="RT.Core.Config.ServicesConfigurationSectionHandler, RT.Core"/&gt; &lt;/configSections&gt; &lt;ServicesSection type="RT.Core.Config.ServicesSection, RT.Core"&gt; &lt;Services&gt; &lt;AddService Port="6996" ReportType="File" /&gt; &lt;AddService Port="7001" ReportType="Other" /&gt; &lt;/Services&gt; &lt;/ServicesSection&gt; &lt;/configuration&gt; </code></pre> <p>I have a <code>ServiceConfig</code> element defined like so: </p> <pre><code>public class ServiceConfig : ConfigurationElement { public ServiceConfig() {} public ServiceConfig(int port, string reportType) { Port = port; ReportType = reportType; } [ConfigurationProperty("Port", DefaultValue = 0, IsRequired = true, IsKey = true)] public int Port { get { return (int) this["Port"]; } set { this["Port"] = value; } } [ConfigurationProperty("ReportType", DefaultValue = "File", IsRequired = true, IsKey = false)] public string ReportType { get { return (string) this["ReportType"]; } set { this["ReportType"] = value; } } } </code></pre> <p>And I have a <code>ServiceCollection</code> defined like so: </p> <pre><code>public class ServiceCollection : ConfigurationElementCollection { public ServiceCollection() { Console.WriteLine("ServiceCollection Constructor"); } public ServiceConfig this[int index] { get { return (ServiceConfig)BaseGet(index); } set { if (BaseGet(index) != null) { BaseRemoveAt(index); } BaseAdd(index, value); } } public void Add(ServiceConfig serviceConfig) { BaseAdd(serviceConfig); } public void Clear() { BaseClear(); } protected override ConfigurationElement CreateNewElement() { return new ServiceConfig(); } protected override object GetElementKey(ConfigurationElement element) { return ((ServiceConfig) element).Port; } public void Remove(ServiceConfig serviceConfig) { BaseRemove(serviceConfig.Port); } public void RemoveAt(int index) { BaseRemoveAt(index); } public void Remove(string name) { BaseRemove(name); } } </code></pre> <p>The part I am missing is what to do for the handler. Originally, I tried to implement an <code>IConfigurationSectionHandler</code> but found two things:</p> <ol> <li>it didn't work</li> <li>it's deprecated. </li> </ol> <p>I'm completely lost now on what to do so I can read my data from config. Any help please!</p>
 

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