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    copied!<p>If you want to keep everything in one configuration file you can introduce a custom configuration section to your app.settings to store properties for debug and release modes.</p> <p>You can either persist the object in your app that stores dev mode specific settings or override an existing appsetting based on the debug switch.</p> <p>Here is a brief console app example (DevModeDependencyTest):</p> <p>App.config :</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;configuration&gt; &lt;configSections&gt; &lt;sectionGroup name="DevModeSettings"&gt; &lt;section name="debug" type="DevModeDependencyTest.DevModeSetting,DevModeDependencyTest" allowLocation="true" allowDefinition="Everywhere" /&gt; &lt;section name="release" type="DevModeDependencyTest.DevModeSetting,DevModeDependencyTest" allowLocation="true" allowDefinition="Everywhere" /&gt; &lt;/sectionGroup&gt; &lt;/configSections&gt; &lt;DevModeSettings&gt; &lt;debug webServiceUrl="http://myDebuggableWebService.MyURL.com" /&gt; &lt;release webServiceUrl="http://myWebservice.MyURL.com" /&gt; &lt;/DevModeSettings&gt; &lt;appSettings&gt; &lt;add key="webServiceUrl" value="http://myWebservice.MyURL.com" /&gt; &lt;/appSettings&gt; &lt;/configuration&gt; </code></pre> <p>The object to store your custom configuration (DevModeSettings.cs):</p> <pre><code> using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Configuration; namespace DevModeDependencyTest { public class DevModeSetting : ConfigurationSection { public override bool IsReadOnly() { return false; } [ConfigurationProperty("webServiceUrl", IsRequired = false)] public string WebServiceUrl { get { return (string)this["webServiceUrl"]; } set { this["webServiceUrl"] = value; } } } } </code></pre> <p>A handler to access your custom configuration settings (DevModeSettingsHandler.cs) :</p> <pre><code> using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Configuration; namespace DevModeDependencyTest { public class DevModeSettingsHandler { public static DevModeSetting GetDevModeSetting() { return GetDevModeSetting("debug"); } public static DevModeSetting GetDevModeSetting(string devMode) { string section = "DevModeSettings/" + devMode; ConfigurationManager.RefreshSection(section); // This must be done to flush out previous overrides DevModeSetting config = (DevModeSetting)ConfigurationManager.GetSection(section); if (config != null) { // Perform validation etc... } else { throw new ConfigurationErrorsException("oops!"); } return config; } } } </code></pre> <p>And finally your entry point to the console app (DevModeDependencyTest.cs) :</p> <pre><code> using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Configuration; namespace DevModeDependencyTest { class DevModeDependencyTest { static void Main(string[] args) { DevModeSetting devMode = new DevModeSetting(); #if (DEBUG) devMode = DevModeSettingsHandler.GetDevModeSetting("debug"); ConfigurationManager.AppSettings["webServiceUrl"] = devMode.WebServiceUrl; #endif Console.WriteLine(ConfigurationManager.AppSettings["webServiceUrl"]); Console.ReadLine(); } } } </code></pre>
 

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