Open.Disposable 2.6.0

.NET Standard 2.0
Install-Package Open.Disposable -Version 2.6.0
dotnet add package Open.Disposable --version 2.6.0
<PackageReference Include="Open.Disposable" Version="2.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Open.Disposable --version 2.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Open.Disposable, 2.6.0"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Open.Disposable as a Cake Addin
#addin nuget:?package=Open.Disposable&version=2.6.0

// Install Open.Disposable as a Cake Tool
#tool nuget:?package=Open.Disposable&version=2.6.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.


Provides a set of useful classes when implementing a disposable.


Core principles

  • For most use cases, disposal should only occur once and be final.
  • Implementing IDisposable in combination with IAsyncDisposable is not typical and should be avoided. The consumer should understand the difference.
  • .Dispose() and .DisposeAsync() should be thread-safe and calling either multiple times should not block or throw. (Typically done through an interlock method.)

Avoid anti-patterns


It can be all too easy to allocate more memory by constructing more classes or starting new tasks in order to complete disposal. This is counter to the intention of cleaning up a class and reducing the amount of work the garbage collector has to do.

Plan for the worst, but code for the best

Thread safety is important and in many cases should be assured. But when the 99% case is the local use of a class, over-engineering can simply create unnecessary overhead and contention.

Let the GC do its job

Aggressively attempting to help out the garbage collector can be a serious anti-pattern as you are simply slowing down your own application in order to avoid GC operations which might actually be helping your performance in total by deferring cleanup.



Simply implement void OnDispose() in order to manage disposal.

Note: DisposableBase exposes a BeforeDispose event which will be triggered once just before disposing commences. This allows for others to react to this disposal event. The DisposableBase is still considered 'live' until after the BeforeDispose event cycle has completed.


Simply implement ValueTask OnDisposeAsync() in order to manage disposal.

DisposeHandler & AsyncDisposeHandler

A simple set of classes for triggering an action (once) when disposed. Can also contain a value (T) which is cleared on dispose.

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

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Open.Disposable:

Package Downloads

A set of variations on ObjectPool implementations with differing underlying collections. Part of the "Open" set of libraries.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
2.6.0 309 4/19/2022
2.5.2 2,010 8/1/2021
2.4.1 42,530 7/16/2020
2.3.0 30,656 7/4/2019
1.2.1 6,876 7/18/2018