namespace System
{
    [AttributeUsage(AttributeTargets.All, AllowMultiple = false, Inherited = true)]
    public abstract class Attribute
    {
        public virtual bool IsDefaultAttribute();
    }
}
NetFx Compat Lab
16.2 %
nuget.org
0.3 %
Upgrade Planner
0.3 %
Assembly System.Runtime , Version=5.0.0.0, PublicKeyToken=b03f5f7f11d50a3a
Implementation Source
Help Documentation
.NET 5.05.0-windows6.06.0-android6.0-ios6.0-maccatalyst6.0-macos6.0-tizen6.0-tvos6.0-windows7.07.0-android7.0-ios7.0-maccatalyst7.0-macos7.0-tizen7.0-tvos7.0-windows8.08.0-android8.0-ios8.0-maccatalyst8.0-macos8.0-tvos8.0-windows9.09.0-android9.0-ios9.0-maccatalyst9.0-macos9.0-tvos9.0-windows
.NET Core 2.02.12.23.03.0 (windows)3.13.1 (windows)
.NET Framework 1.01.12.03.03.53.5 (Client)4.04.0 (Client)4.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard 2.02.1
Xamarin Android 0.0
Xamarin iOS 0.0
Xamarin macOS 0.0
Xamarin tvOS 0.0
Xamarin watchOS 0.0
OS Platforms

For the selected framework this API is supported on all OS platforms.

  • Built-in API
  • Package-provided API

03/28/2024
An error has occurred. This application may no longer respond until reloaded. Reload 🗙