net11.0 
namespace System.Configuration
{
    [ConfigurationCollection(typeof(ConnectionStringSettings))]
    [DefaultMember("Item")]
    public sealed class ConnectionStringSettingsCollection : ConfigurationElementCollection
    {
        protected override ConfigurationElement CreateNewElement();
    }
}
.NET
5.06.07.08.09.010.011.0
.NET Core
3.03.1
.NET Framework
2.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net11.0
Assemblies

System.Configuration.ConfigurationManager , Version=11.0.0.0, PublicKeyToken=cc7b13ffcd2ddd51

System.Configuration.ConfigurationManager , Version=10.0.0.0, PublicKeyToken=cc7b13ffcd2ddd51

Referencing

Your project needs a package reference to System.Configuration.ConfigurationManager.

Package System.Configuration.ConfigurationManager (11.0.0-preview.2.26159.112) net11.0
Platform Restrictions

This API is supported on any platform except for these:

  • Browser
  • wasi
  • Built-in API
  • Package-provided API