How Can I Access a Custom .NET Configuration File?

Working with Independent .NET Configuration Files

Problem:

How do I access a standalone .NET configuration file that's not linked to a specific assembly?

Solution:

The ExeConfigurationFileMap class provides the solution. Here's how to open and read from a custom configuration file:

<code class="language-csharp">ExeConfigurationFileMap configMap = new ExeConfigurationFileMap();
configMap.ExeConfigFilename = @"d:\test\justAConfigFile.config.whateverYouLikeExtension"; // Replace with your file path
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(configMap, ConfigurationUserLevel.None);</code>

Remember to replace the placeholder path with the correct location of your configuration file. The extension can be anything you choose.

Accessing settings is straightforward using the indexer:

<code class="language-csharp">string value = config.AppSettings.Settings["test"].Value;</code>

This retrieves the value associated with the key "test" within the AppSettings section of your configuration file.

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