Microsoft.Extensions.Configuration 10.0.1

About

Microsoft.Extensions.Configuration is combined with a core configuration abstraction under Microsoft.Extensions.Configuration.Abstractions that allows for building different kinds of configuration providers to retrieve key/value pair configuration values from in the form of IConfiguration. There are a number of built-in configuration provider implementations to read from environment variables, in-memory collections, JSON, INI or XML files. Aside from the built-in variations, there are more shipped libraries shipped by community for integration with various configuration service and other data sources.

Key Features

  • In-memory configuration provider
  • Chained configuration provider for chaining multiple confiugration providers together.
  • Base types that implement configuration abstraction interfaces that can be used when implementing other configuration providers.

How to Use

using Microsoft.Extensions.Configuration;

var configurationBuilder = new ConfigurationBuilder();

configurationBuilder.AddInMemoryCollection(
    new Dictionary<string, string?>
    {
        ["Setting1"] = "value",
        ["MyOptions:Enabled"] = bool.TrueString,
    });

configurationBuilder.AddInMemoryCollection(
    new Dictionary<string, string?>
    {
        ["Setting2"] = "value2",
        ["MyOptions:Enabled"] = bool.FalseString,
    });

var config = configurationBuilder.Build();

// note case-insensitive
Console.WriteLine(config["setting1"]);
Console.WriteLine(config["setting2"]);

// note last in wins
Console.WriteLine(config["MyOptions:Enabled"]);

Main Types

The main types provided by this library are:

  • Microsoft.Extensions.Configuration.ConfigurationBuilder
  • Microsoft.Extensions.Configuration.ConfigurationManager
  • Microsoft.Extensions.Configuration.ConfigurationRoot
  • Microsoft.Extensions.Configuration.ConfigurationSection

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Configuration is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Showing the top 20 packages that depend on Microsoft.Extensions.Configuration.

Packages Downloads
DevExpress.ExpressApp.Win.Design
Contains the XAF framework's design-time functionality based on the .NET preview features. Requires Visual Studio v17.0 or newer.
 11
DevExpress.ExpressApp.Win
The core functionality for XAF WinForms apps.
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Microsoft.Extensions.Configuration.FileExtensions
Provides a base class for file-based configuration providers used with Microsoft.Extensions.Configuration and extension methods for configuring them.
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Microsoft.Extensions.Configuration.Json
JSON configuration provider implementation for Microsoft.Extensions.Configuration. This package enables you to read your application's settings from a JSON file. You can use JsonConfigurationExtensions.AddJsonFile extension method on IConfigurationBuilder to add the JSON configuration provider to the configuration builder.
 1
DevExpress.DataAccess
Target Platform/Framework: Cross-Platform DevExpress Product Libraries Used: Core Libraries (https://docs.devexpress.com/CoreLibraries) Available in the following DevExpress Subscription(s): Universal, DXperience, WinForms, ASP.NET & Blazor (includes DevExtreme), WPF, Reporting, Office File API
 0

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Version Downloads Last updated
10.0.1 1 12/22/2025