System.Configuration.ConfigurationManager 10.0.0-preview.5.25277.101

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher.
This is a prerelease version of System.Configuration.ConfigurationManager. 
dotnet add package System.Configuration.ConfigurationManager --version 10.0.0-preview.5.25277.101                

                    
                

            
NuGet\Install-Package System.Configuration.ConfigurationManager -Version 10.0.0-preview.5.25277.101
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="10.0.0-preview.5.25277.101" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add System.Configuration.ConfigurationManager --version 10.0.0-preview.5.25277.101                

                    
                

            
#r "nuget: System.Configuration.ConfigurationManager, 10.0.0-preview.5.25277.101"
#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=10.0.0-preview.5.25277.101&prerelease

// Install System.Configuration.ConfigurationManager as a Cake Tool
#tool nuget:?package=System.Configuration.ConfigurationManager&version=10.0.0-preview.5.25277.101&prerelease

About

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()
    {
        try
        {
            // 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
            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection(config.AppSettings.SectionInformation.Name);
        }
        catch (ConfigurationErrorsException ex)
        {
            Console.WriteLine("Error reading configuration: ");
            Console.WriteLine(ex.Message);
        }
    }
}

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

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <add key="Server" value="example.com"/>
    <add key="Username" value="Admin"/>
  </appSettings>
</configuration>

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 was computed.  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 was computed.  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.  net9.0 is compatible.  net10.0 is compatible. 
.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.

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Version Downloads Last updated
10.0.0-preview.5.25277.101 0 5/29/2025
10.0.0-preview.5.25266.103 0 5/20/2025
10.0.0-preview.4.25255.103 0 5/12/2025
4.6.0-preview.19073.11 5 1/28/2019
4.6.0-preview.18571.3 2 11/30/2018

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