System.Configuration.ConfigurationManager 8.0.0

The ID prefix of this package has been reserved for one of the owners of this package by Prefix Reserved
There is a newer prerelease version of this package available.
See the version list below for details.
dotnet add package System.Configuration.ConfigurationManager --version 8.0.0
NuGet\Install-Package System.Configuration.ConfigurationManager -Version 8.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="System.Configuration.ConfigurationManager" Version="8.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add System.Configuration.ConfigurationManager --version 8.0.0
#r "nuget: System.Configuration.ConfigurationManager, 8.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install System.Configuration.ConfigurationManager as a Cake Addin
#addin nuget:?package=System.Configuration.ConfigurationManager&version=8.0.0

// Install System.Configuration.ConfigurationManager as a Cake Tool
#tool nuget:?package=System.Configuration.ConfigurationManager&version=8.0.0


Provides types that support using XML configuration files (app.config). This package exists only to support migrating existing .NET Framework code that already uses System.Configuration. When writing new code, use another configuration system instead, such as Microsoft.Extensions.Configuration.

How to Use

The following example shows how to read and modify the application configuration settings.

using System;
using System.Configuration;

class Program
    static void Main()
            // Open current application configuration
            Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            KeyValueConfigurationCollection section = config.AppSettings.Settings;

            // Print settings from configuration file
            foreach (string key in section.AllKeys)
                Console.WriteLine($"{key}: {section[key].Value}");

            // Add new setting
            section.Add("Database", "TestDatabase");

            // Change existing setting
            section["Username"].Value = "TestUser";

            // Save changes to file
        catch (ConfigurationErrorsException ex)
            Console.WriteLine("Error reading configuration: ");

To run this example, include an app.config file with the following content in your project:

<?xml version="1.0" encoding="utf-8" ?>
    <add key="Server" value=""/>
    <add key="Username" value="Admin"/>

Main Types

The main types provided by this library are:

  • System.Configuration.Configuration
  • System.Configuration.ConfigurationManager

Additional Documentation

Feedback & Contributing

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

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 is compatible.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (2.2K)

Showing the top 5 NuGet packages that depend on System.Configuration.ConfigurationManager:

Package Downloads
System.Diagnostics.PerformanceCounter The ID prefix of this package has been reserved for one of the owners of this package by

Provides the System.Diagnostics.PerformanceCounter class, which allows access to Windows performance counters. Commonly Used Types: System.Diagnostics.PerformanceCounter

System.Runtime.Caching The ID prefix of this package has been reserved for one of the owners of this package by

Provides classes to use caching facilities. Commonly Used Types: System.Runtime.Caching.CacheEntryChangeMonitor System.Runtime.Caching.CacheEntryRemovedArguments System.Runtime.Caching.CacheEntryUpdateArguments System.Runtime.Caching.CacheItem System.Runtime.Caching.CacheItemPolicy System.Runtime.Caching.ChangeMonitor System.Runtime.Caching.FileChangeMonitor System.Runtime.Caching.HostFileChangeMonitor System.Runtime.Caching.MemoryCache System.Runtime.Caching.ObjectCache

Microsoft.Data.SqlClient The ID prefix of this package has been reserved for one of the owners of this package by

The current data provider for SQL Server and Azure SQL databases. This has replaced System.Data.SqlClient. These classes provide access to SQL and encapsulate database-specific protocols, including tabular data stream (TDS). Commonly Used Types: Microsoft.Data.SqlClient.SqlConnection Microsoft.Data.SqlClient.SqlException Microsoft.Data.SqlClient.SqlParameter Microsoft.Data.SqlClient.SqlDataReader Microsoft.Data.SqlClient.SqlCommand Microsoft.Data.SqlClient.SqlTransaction Microsoft.Data.SqlClient.SqlParameterCollection Microsoft.Data.SqlClient.SqlClientFactory When using NuGet 3.x this package requires at least version 3.4.

FluentAssertions The ID prefix of this package has been reserved for one of the owners of this package by

A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Works with .NET Standard 2.0 and higher, .NET Framework 4.7 and higher and .NET 6 and higher. Supports the unit test frameworks MSTest2, NUnit3, NUnit4, XUnit2 and MSpec. Supported by InfoSupport B.V.

EntityFramework The ID prefix of this package has been reserved for one of the owners of this package by

Entity Framework 6 (EF6) is a tried and tested object-relational mapper for .NET with many years of feature development and stabilization.

GitHub repositories (270)

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Version Downloads Last updated
9.0.0-preview.5.24306.7 1,696 6/11/2024
9.0.0-preview.4.24266.19 6,183 5/21/2024
9.0.0-preview.3.24172.9 12,407 4/11/2024
9.0.0-preview.2.24128.5 12,172 3/12/2024
9.0.0-preview.1.24080.9 17,823 2/13/2024
8.0.0 19,035,476 11/14/2023
8.0.0-rc.2.23479.6 129,201 10/10/2023
8.0.0-rc.1.23419.4 106,906 9/12/2023
8.0.0-preview.7.23375.6 46,691 8/8/2023
8.0.0-preview.6.23329.7 24,873 7/11/2023
8.0.0-preview.5.23280.8 26,274 6/13/2023
8.0.0-preview.4.23259.5 59,232 5/16/2023
8.0.0-preview.3.23174.8 66,765 4/11/2023
8.0.0-preview.2.23128.3 37,296 3/14/2023
8.0.0-preview.1.23110.8 37,225 2/21/2023
7.0.0 44,342,771 11/7/2022
7.0.0-rc.2.22472.3 141,102 10/11/2022
7.0.0-rc.1.22426.10 129,699 9/14/2022
7.0.0-preview.7.22375.6 35,989 8/9/2022
7.0.0-preview.6.22324.4 34,856 7/12/2022
7.0.0-preview.5.22301.12 40,212 6/14/2022
7.0.0-preview.4.22229.4 28,933 5/10/2022
7.0.0-preview.3.22175.4 12,663 4/13/2022
7.0.0-preview.2.22152.2 28,321 3/14/2022
7.0.0-preview.1.22076.8 23,165 2/17/2022
6.0.2-mauipre.1.22102.15 18,908 2/15/2022
6.0.2-mauipre.1.22054.8 57,649 1/19/2022
6.0.1 88,291,740 9/13/2022
6.0.0 168,417,610 11/8/2021
6.0.0-rc.2.21480.5 55,071 10/12/2021
6.0.0-rc.1.21451.13 62,964 9/14/2021
6.0.0-preview.7.21377.19 60,947 8/10/2021
6.0.0-preview.6.21352.12 51,947 7/14/2021
6.0.0-preview.5.21301.5 46,948 6/15/2021
6.0.0-preview.4.21253.7 55,072 5/24/2021
6.0.0-preview.3.21201.4 160,431 4/8/2021
6.0.0-preview.2.21154.6 66,231 3/11/2021
6.0.0-preview.1.21102.12 139,219 2/12/2021
5.0.0 269,338,682 11/9/2020
5.0.0-rc.2.20475.5 78,232 10/13/2020
5.0.0-rc.1.20451.14 61,851 9/14/2020
5.0.0-preview.8.20407.11 158,187 8/25/2020
5.0.0-preview.7.20364.11 120,540 7/21/2020
5.0.0-preview.6.20305.6 37,700 6/25/2020
5.0.0-preview.5.20278.1 37,074 6/10/2020
5.0.0-preview.4.20251.6 78,370 5/18/2020
5.0.0-preview.3.20214.6 57,570 4/23/2020
5.0.0-preview.2.20160.6 62,675 4/2/2020
5.0.0-preview.1.20120.5 55,928 3/16/2020
4.7.0 439,747,696 12/3/2019
4.7.0-preview3.19551.4 62,626 11/13/2019
4.7.0-preview2.19523.17 24,462 11/1/2019
4.7.0-preview1.19504.10 32,009 10/15/2019
4.6.0 48,538,038 9/23/2019
4.6.0-rc1.19456.4 66,359 9/16/2019
4.6.0-preview9.19421.4 26,025 9/4/2019
4.6.0-preview9.19416.11 833 9/4/2019
4.6.0-preview8.19405.3 92,915 8/13/2019
4.6.0-preview7.19362.9 199,814 7/23/2019
4.6.0-preview6.19303.8 747,594 6/12/2019
4.6.0-preview6.19264.9 870 9/4/2019
4.6.0-preview5.19224.8 62,143 5/6/2019
4.6.0-preview4.19212.13 13,957 4/18/2019
4.6.0-preview3.19128.7 78,419 3/6/2019
4.6.0-preview.19073.11 59,027 1/29/2019
4.6.0-preview.18571.3 129,527 12/3/2018
4.5.0 393,313,452 5/29/2018
4.5.0-rc1 213,468 5/6/2018
4.5.0-preview2-26406-04 446,168 4/10/2018
4.5.0-preview1-26216-02 435,108 2/26/2018
4.5.0-preview1-25914-04 641,227 11/15/2017
4.4.1 107,520,719 12/12/2017
4.4.0 262,078,804 8/11/2017
4.4.0-preview2-25405-01 69,362 6/27/2017
4.4.0-preview1-25305-02 7,283 5/9/2017