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    <p>Here's a simple example.</p> <pre><code>//START CODE //MyCompany.MyProject.csproj which results in MyCompany.MyProject.dll //Add a Folder called "Configuration" namespace MyCompany.MyProject.Configuration { using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Configuration; public class TransformationToDirectoryMapping : ConfigurationElement { private const string FRIENDLY_NAME = "FriendlyName"; private const string PICKUP_FOLDER = "PickupFolder"; [ConfigurationProperty(FRIENDLY_NAME, DefaultValue = "", IsKey = false, IsRequired = true)] public string FriendlyName { get { return ((string)(base[FRIENDLY_NAME])); } set { base[FRIENDLY_NAME] = value; } } [ConfigurationProperty(PICKUP_FOLDER, DefaultValue = "", IsKey = true, IsRequired = true)] public string PickupFolder { get { return ((string)(base[PICKUP_FOLDER])); } set { base[PICKUP_FOLDER] = value; } } } //----------------------------------------------------------------------- //----------------------------------------------------------------------- [ConfigurationCollection(typeof(TransformationToDirectoryMapping))] public class TransformationToDirectoryMappingCollection : ConfigurationElementCollection { protected override ConfigurationElement CreateNewElement() { return new TransformationToDirectoryMapping(); } protected override object GetElementKey(ConfigurationElement element) { return ((TransformationToDirectoryMapping)(element)).PickupFolder; } public TransformationToDirectoryMapping this[int idx] { get { return (TransformationToDirectoryMapping)BaseGet(idx); } } new public TransformationToDirectoryMapping this[string key] { get { return (TransformationToDirectoryMapping)BaseGet(key); } } } //----------------------------------------------------------------------- //----------------------------------------------------------------------- public class TransformationToDirectoryMappingConfigSection : ConfigurationSection { private const string TRANSFORMATION_TO_DIRECTORY_MAPPINGS = "TransformationToDirectoryMappings"; [ConfigurationProperty(TRANSFORMATION_TO_DIRECTORY_MAPPINGS)] public TransformationToDirectoryMappingCollection TransformationToDirectoryMappingItems { get { return ((TransformationToDirectoryMappingCollection)(base[TRANSFORMATION_TO_DIRECTORY_MAPPINGS])); } } } //----------------------------------------------------------------------- //----------------------------------------------------------------------- public static class MyRetriever { public const string MAPPINGS_CONFIGURATION_SECTION_NAME = "TransformationToDirectoryMappingsSection"; public static TransformationToDirectoryMappingCollection GetTheCollection() { TransformationToDirectoryMappingConfigSection mappingsSection = (TransformationToDirectoryMappingConfigSection)ConfigurationManager.GetSection(MAPPINGS_CONFIGURATION_SECTION_NAME); if (mappingsSection != null) { return mappingsSection.TransformationToDirectoryMappingItems; } return null; // OOPS! } } } </code></pre> <p>//XML for config file:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;configuration&gt; &lt;configSections&gt; &lt;section name="TransformationToDirectoryMappingsSection" type="MyCompany.MyProject.Configuration.TransformationToDirectoryMappingConfigSection, MyCompany.MyProject"/&gt; &lt;/configSections&gt; &lt;TransformationToDirectoryMappingsSection&gt; &lt;TransformationToDirectoryMappings&gt; &lt;add FriendlyName="Hello" PickupFolder="C:\WUWUTemp\pickups\pickup11\" /&gt; &lt;add FriendlyName="GoodBye" PickupFolder="C:\WUWUTemp\pickups\pickup12\" /&gt; &lt;/TransformationToDirectoryMappings&gt; &lt;/TransformationToDirectoryMappingsSection&gt; &lt;/configuration&gt; </code></pre>
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    1. POHow to include simple collections in ConfigurationSection
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    1. COThanks for the reply - especially to a relatively old question. :) Unfortunately, that's still not quite what I'm looking for. You have an array of 1st-class objects, each containing a couple strings. All I want is an array of strings. Using "old-style" config sections, I was able to do that without creating a custom object. I was hoping there's a way to do that within the new config framework, without necessitating creation of an object to essentially wrap a List<string>.
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