ReactiveProperty 8.0.4-pre202203040658

This is a prerelease version of ReactiveProperty.
There is a newer version of this package available.
See the version list below for details.
dotnet add package ReactiveProperty --version 8.0.4-pre202203040658
                    
NuGet\Install-Package ReactiveProperty -Version 8.0.4-pre202203040658
                    
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="ReactiveProperty" Version="8.0.4-pre202203040658" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="ReactiveProperty" Version="8.0.4-pre202203040658" />
                    
Directory.Packages.props
<PackageReference Include="ReactiveProperty" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add ReactiveProperty --version 8.0.4-pre202203040658
                    
#r "nuget: ReactiveProperty, 8.0.4-pre202203040658"
                    
#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.
#:package ReactiveProperty@8.0.4-pre202203040658
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=ReactiveProperty&version=8.0.4-pre202203040658&prerelease
                    
Install as a Cake Addin
#tool nuget:?package=ReactiveProperty&version=8.0.4-pre202203040658&prerelease
                    
Install as a Cake Tool

Japanese

ReactiveProperty

ReactiveProperty provides MVVM and asynchronous support features under Reactive Extensions. Target framework is .NET 6.0, .NET Core 3.1, .NET Framework 4.7.2 and .NET Standard 2.0.

alternate text is missing from this package README image alternate text is missing from this package README image Build and Release

ReactiveProperty overview

ReactiveProperty is a very powerful and simple library.

Delay and Select

This sample app's ViewModel code is as below:

public class MainPageViewModel
{
    public ReactiveProperty<string> Input { get; }
    public ReadOnlyReactiveProperty<string> Output { get; }
    public MainPageViewModel()
    {
        Input = new ReactiveProperty<string>("");
        Output = Input
            .Delay(TimeSpan.FromSeconds(1))
            .Select(x => x.ToUpper())
            .ToReadOnlyReactiveProperty();
    }
}

It's LINQ and Rx magic.

All steps are written in the "Getting Started" section in the ReactiveProperty documentation.

This library's concept is "Fun programing". ViewModel code using ReactiveProperties is very simple.

ViewModel's popular implementation:

public class AViewModel : INotifyPropertyChanged
{
    public event PropertyChangedEventHandler PropertyChanged;

    private string _name;
    public string Name
    {
        get => _name;
        set
        {
            _name = value;
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Name)));

            // Update a command status
            DoSomethingCommand.RaiseCanExecuteChanged();
        }
    }

    private string _memo;
    public string Memo
    {
        get => _memo;
        set
        {
            _memo = value;
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(Memo)));

            // Update a command status
            DoSomethingCommand.RaiseCanExecuteChanged();
        }
    }

    // DelegateCommand is plane ICommand implementation.
    public DelegateCommand DoSomethingCommand { get; }

    public AViewModel()
    {
        DoSomethingCommand = new DelegateCommand(
            () => { ... },
            () => !string.IsNullOrEmpty(Name) && !string.IsNullOrEmpty(Memo)
        );
    }
}

Binding code:

<TextBlock Text="{Binding Name}">
<TextBlock Text="{Binding Memo}">

ViewModel's implementation using ReactiveProperty:

public class AViewModel
{
    public ReactiveProperty<string> Name { get; }
    public ReactiveProperty<string> Memo { get; }
    public ReactiveCommand DoSomethingCommand { get; }

    public AViewModel()
    {
        Name = new ReactiveProperty<string>()
            .SetValidateNotifyError(x => string.IsNullOrEmpty(x) ? "Invalid value" : null);
        Memo = new ReactiveProperty<string>()
            .SetValidateNotifyError(x => string.IsNullOrEmpty(x) ? "Invalid value" : null);
        DoSomethingCommand = new[]
            {
                Name.ObserveHasErrors,
                Memo.ObserveHasErrors,
            }
            .CombineLatestValuesAreAllFalse()
            .ToReactiveCommand()
            .WithSubscribe(() => { ... });
    }
}

Binding code:

<TextBlock Text="{Binding Name.Value}">
<TextBlock Text="{Binding Memo.Value}">

It's very simple.

ReactiveProperty doesn't provide base class by ViewModel, which means that ReactiveProperty can be used together with another MVVM library like Prism, MVVMLight, etc...

Documentation

ReactiveProperty documentation

NuGet packages

Package Id Version and downloads Description
ReactiveProperty alternate text is missing from this package README imagealternate text is missing from this package README image The package includes all core features, and the target platform is .NET Standard 2.0. It fits almost all situations.
ReactiveProperty.Core alternate text is missing from this package README imagealternate text is missing from this package README image The package includes minimum classes such as ReactivePropertySlim<T> and ReadOnlyReactivePropertySlim<T>. And this doesn't have any dependency even System.Reactive. If you don't need Rx features, then it fits.
ReactiveProperty.WPF alternate text is missing from this package README imagealternate text is missing from this package README image The package includes EventToReactiveProperty and EventToReactiveCommand for WPF. This is for .NET Core 3.0 or later and .NET Framework 4.7.2 or later.
ReactiveProperty.UWP alternate text is missing from this package README imagealternate text is missing from this package README image The package includes EventToReactiveProperty and EventToReactiveCommand for UWP.
ReactiveProperty.XamarinAndroid alternate text is missing from this package README imagealternate text is missing from this package README image The package includes many extension methods to create IObservable from events for Xamarin.Android native.
ReactiveProperty.XamariniOS alternate text is missing from this package README imagealternate text is missing from this package README image The package includes many extension methods to bind ReactiveProperty and ReactiveCommand to Xamarin.iOS native controls.

Support

I'm not watching StackOverflow and other forums to support ReactiveProperty, so please feel free to post questions at Github issues. I'm available Japanese(1st language) and English(2nd language).

If too many questions are posted, then I plan to separate posting place about feature requests, issues, questions.

Author info

Yoshifumi Kawai a.k.a. @neuecc is Founder/CEO/CTO of Cysharp, Inc in Tokyo, Japan. Awarded Microsoft MVP for Developer Technologies since April, 2011. He is an original owner of ReactiveProperty.

Takaaki Suzuki a.k.a. @xin9le software developer in Fukui, Japan. Awarded Microsoft MVP for Developer Technologies since July, 2012.

Kazuki Ota a.k.a. @okazuki software developer in Tokyo, Japan. Awarded Microsoft MVP for Windows Development since July 2011 to Feb 2017. Now, working at Microsoft Japan.

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 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 was computed.  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 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 is compatible. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 is compatible.  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 (20)

Showing the top 5 NuGet packages that depend on ReactiveProperty:

Package Downloads
MessagePack.ReactiveProperty

Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). Extension support for ReactiveProperty.

ReactiveProperty.WPF

ReactiveProperty.WPF provides behaviors such as EventToReactiveCommand and EventToReactiveProperty.

ReactiveProperty.XamarinAndroid

ReactiveProperty.XamarinAndroid provides many useful extension methods for .NET for Android that can be used with ReactiveProperty.

ReactiveProperty.XamariniOS

ReactiveProperty.XamariniOS provides many useful extension methods for .NET for iOS that can be used with ReactiveProperty.

Rx.Community.Extensions

Community-written extension methods to Rx

GitHub repositories (22)

Showing the top 20 popular GitHub repositories that depend on ReactiveProperty:

Repository Stars
MathewSachin/Captura
Capture Screen, Audio, Cursor, Mouse Clicks and Keystrokes
MessagePack-CSharp/MessagePack-CSharp
Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]
wieslawsoltes/Dock
A docking layout system.
b-editor/beutl
Cross-platform video editing (compositing) software.
dotnet/dotnet
Home of .NET's Virtual Monolithic Repository which includes all the code needed to build the .NET SDK.
danm-de/pcsc-sharp
PC/SC wrapper classes for .NET, written in C#
OpenKH/OpenKh
Kingdom Hearts libraries, tools, game engine and documentation
leezer3/OpenBVE
OpenBVE- A free train simulator
muak/AiForms.SettingsView
SettingsView for Xamarin.Forms
anoyetta/ACT.Hojoring
Advanced Combat Tracker の FFXIV向けプラグインです。トリガ、TTSの拡張、HUDの拡張など。
emoacht/Wifinian
A Windows desktop tool to enable user to actively control Wi-Fi connections
muak/AiForms.Effects
AiForms.Effects for Xamarin.Forms
muak/AiForms.Maui.SettingsView
SettingsView for .NET MAUI
muak/AiForms.Dialogs
AiForms.Dialogs for Xamarin.Forms
wieslawsoltes/ReactiveHistory
Reactive undo/redo framework for .NET.
YoshihiroIto/JitPad
On the fly disassemble C# code based on JitDasm
Axadiw/MFIGamepadFeeder
Use your MFI (Made for iPhone/iPad) Gamepad on Windows!
chenjing1294/GifCapture
Screen captures and save it directly to .gif
f-miyu/Plugin.CloudFirestore
neuecc/PhotonWire
Typed Asynchronous RPC Layer for Photon Server + Unity
Version Downloads Last Updated
9.7.0 42,593 1/27/2025
9.7.0-pre2 151 1/27/2025
9.7.0-pre1 132 1/24/2025
9.6.0 62,231 7/14/2024
9.5.0 64,160 2/28/2024
9.4.1 7,336 2/12/2024
9.4.0 1,864 2/11/2024
9.4.0-pre8 722 12/21/2023
9.4.0-pre7 455 12/21/2023
9.4.0-pre6 460 12/21/2023
9.4.0-pre5 464 12/21/2023
9.4.0-pre4 470 12/21/2023
9.3.4 36,232 10/30/2023
9.3.4-pre202310290551 531 10/29/2023
9.3.3 4,253 10/10/2023
9.3.2 8,488 9/25/2023
9.3.2-pre202309140728 678 9/14/2023
9.3.1 16,493 8/11/2023
9.3.0 4,216 7/31/2023
9.3.0-pre202307291429 785 7/29/2023
9.2.0 14,695 6/19/2023
9.2.0-pre202305241301 850 5/25/2023
9.1.2 35,275 3/12/2023
9.0.0 13,063 2/12/2023
9.0.0-pre202302040959 826 2/4/2023
9.0.0-pre202301080724 944 1/8/2023
9.0.0-pre202301050852 794 1/5/2023
8.2.0 65,695 11/10/2022
8.1.2 61,953 6/6/2022
8.1.2-pre202206051057 820 6/5/2022
8.1.1 5,803 5/27/2022
8.1.0 6,561 4/30/2022
8.1.0-pre202204290912 868 4/29/2022
8.1.0-pre202204290644 804 4/29/2022
8.0.5 14,018 3/24/2022
8.0.5-pre202203191529 873 3/19/2022
8.0.5-pre202203191312 822 3/19/2022
8.0.4 18,372 3/5/2022
8.0.4-pre202203040658 857 3/4/2022
8.0.3 54,076 12/5/2021
8.0.3-pre202112031043 1,532 12/3/2021
8.0.3-pre202112030833 1,502 12/3/2021
8.0.2 6,694 11/21/2021
8.0.1 2,534 11/20/2021
8.0.1-pre202111200140 1,212 11/20/2021
8.0.0 59,452 11/9/2021
8.0.0-pre202111090825 895 11/9/2021
8.0.0-pre202110240626 2,730 10/24/2021
8.0.0-pre202110161410 1,045 10/16/2021
8.0.0-pre202110160852 926 10/16/2021
8.0.0-pre202110160831 940 10/16/2021
8.0.0-pre202110131323 964 10/13/2021
8.0.0-pre202110071401 971 10/7/2021
8.0.0-pre202110060758 994 10/6/2021
8.0.0-pre202110060735 863 10/6/2021
8.0.0-pre202109190434 1,055 9/19/2021
8.0.0-pre202109160117 958 9/16/2021
8.0.0-pre202108141424 1,077 8/14/2021
8.0.0-pre202107040319 1,551 7/4/2021
7.12.0 53,442 8/6/2021
7.11.0 15,531 5/31/2021
7.10.0 12,356 4/29/2021
7.9.0 19,360 4/20/2021
7.8.3 13,161 3/24/2021
7.8.2 2,489 3/23/2021
7.8.1 5,649 3/11/2021
7.8.1-pre202103031133 1,086 3/3/2021
7.8.0 9,282 2/21/2021
7.8.0-pre202102210255 993 2/21/2021
7.8.0-pre202102201703 1,012 2/20/2021
7.7.1 3,196 2/19/2021
7.7.1-pre202102190925 1,025 2/19/2021
7.7.0 16,522 1/26/2021
7.6.1 5,553 1/15/2021
7.6.0 237,746 1/13/2021
7.5.1 46,532 10/19/2020
7.5.0 2,797 10/17/2020
7.5.0-pre202010141113 1,088 10/14/2020
7.4.1 25,602 9/23/2020
7.4.0 3,445 9/18/2020
7.3.0 2,941 9/17/2020
7.2.1 28,303 9/11/2020
7.2.0 59,946 8/4/2020
7.1.0 69,868 5/26/2020
7.1.0-pre202005251107 1,157 5/25/2020
7.0.1 4,940 5/14/2020
7.0.1-pre202005131606 1,157 5/13/2020
7.0.0 6,361 5/5/2020
7.0.0-ci20200503102823 1,177 5/3/2020
7.0.0-ci20200503100450 1,167 5/3/2020
6.2.0 28,413 1/17/2020
6.1.4 17,671 11/16/2019
6.1.3 24,943 9/26/2019
6.1.2 13,305 8/31/2019
6.0.3 11,686 7/26/2019
5.6.0 272,363 6/20/2019
5.5.1 66,308 5/22/2019
5.4.0 10,588 4/3/2019
5.4.0-pre1 1,610 4/3/2019
5.3.2 31,078 12/14/2018
5.3.1 3,460 12/13/2018
5.3.0 62,715 9/28/2018
5.2.0 13,902 8/2/2018
5.1.1 7,032 6/21/2018
5.0.0 7,119 6/3/2018
4.2.2 92,875 4/20/2018
4.2.1 5,721 3/17/2018
4.2.0 10,560 1/28/2018
4.1.1 3,574 1/20/2018
4.1.0 2,856 1/18/2018
4.0.1-pre1 2,261 1/14/2018
4.0.0 6,828 1/8/2018
4.0.0-pre5 2,273 1/6/2018
4.0.0-pre4 3,087 10/21/2017
4.0.0-pre3 2,697 6/16/2017
3.6.0 32,006 3/27/2017
3.5.1 28,005 3/3/2017
3.5.0 5,456 2/15/2017
3.4.0 6,417 11/30/2016
3.3.2 3,281 11/21/2016
3.3.1 3,898 11/15/2016
3.2.0 48,840 10/10/2016
3.1.0 2,719 10/7/2016
3.0.1 8,361 8/13/2016
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3.0.0-pre5 2,267 7/20/2016
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3.0.0-pre2 2,168 7/9/2016
3.0.0-pre1 2,345 7/6/2016
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2.8.0 5,056 7/2/2016
2.7.4 3,195 6/24/2016
2.7.3.1 3,117 6/16/2016
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2.7.2 6,332 4/23/2016
2.7.1 4,360 4/9/2016
2.7.0 2,531 4/8/2016
2.6.2 2,761 4/2/2016
2.6.1 2,453 4/2/2016
2.6.0 2,792 3/24/2016
2.6.0-beta1 2,704 2/29/2016
2.5.0 7,426 2/7/2016
2.4.2 4,463 1/10/2016
2.4.1 3,484 12/25/2015
2.4.0 2,581 12/23/2015
2.4.0-pre3 2,254 12/23/2015
2.4.0-pre2 2,246 12/23/2015
2.4.0-pre1 2,282 12/22/2015
2.3.1 3,095 12/18/2015
2.3.0.1 3,410 12/4/2015
2.3.0 3,402 12/1/2015
2.3.0-pre4 2,697 11/27/2015
2.3.0-pre3 2,662 11/26/2015
2.3.0-pre2 2,611 11/26/2015
2.3.0-pre 2,632 11/25/2015
2.2.8.1-pre 2,306 11/24/2015
2.2.8 3,289 11/10/2015
2.2.7.1 3,058 10/26/2015
2.2.7 2,497 10/26/2015
2.2.6.1 2,942 10/12/2015
2.2.6 2,584 10/9/2015
2.2.5 3,769 10/1/2015
2.2.4 3,137 9/11/2015
2.2.3.1 3,594 8/28/2015
2.2.3 2,564 8/27/2015
2.2.2 3,235 7/20/2015
2.2.1 3,163 6/28/2015
2.2.0 4,225 4/24/2015
2.1.8.2 2,829 4/2/2015
2.1.8.1 2,792 3/16/2015
2.1.7 2,593 3/14/2015
2.1.6 2,523 3/14/2015
2.1.5 2,555 3/12/2015
2.1.3 2,522 3/10/2015
2.1.2 2,546 3/8/2015
2.1.1 2,559 3/7/2015
2.1.0 3,104 2/25/2015
2.0.1 3,052 2/23/2015
2.0.0 2,853 2/23/2015
2.0.0-pre8 2,676 2/23/2015
2.0.0-pre7 2,703 2/22/2015
2.0.0-pre6 2,663 2/22/2015
2.0.0-pre5 2,646 2/22/2015
2.0.0-pre4 2,578 2/22/2015
2.0.0-pre3 2,576 2/22/2015
2.0.0-pre2 4,532 2/18/2015
2.0.0-pre1 2,588 2/17/2015
1.2.1 2,968 2/21/2015
1.2.0 2,751 2/17/2015
1.1.2 5,151 2/8/2015
1.1.1.2 2,626 2/6/2015
1.1.1.1 3,392 10/19/2014
1.1.1 2,602 10/19/2014
1.1.0 2,829 10/13/2014
1.1.0-beta2 2,247 10/11/2014
1.1.0-beta1 2,258 10/11/2014
1.0.3.1 2,760 10/10/2014
1.0.3 2,807 10/9/2014
1.0.2.2 2,644 10/5/2014
1.0.2 2,646 9/27/2014
1.0.1.1 2,491 9/27/2014
1.0.1 2,550 9/27/2014
1.0.0.2 2,753 9/4/2014
1.0.0.1 2,613 9/4/2014
1.0.0 2,763 9/4/2014
0.4.5.1 3,068 6/3/2014
0.4.5 2,936 5/7/2014
0.4.5-beta3 2,241 5/6/2014
0.4.5-beta2 2,825 5/6/2014
0.4.5-beta1 2,242 5/6/2014
0.4.4.3 2,705 5/4/2014
0.4.4.2 2,760 5/3/2014
0.4.4.1 2,640 5/3/2014
0.4.4 2,602 5/3/2014
0.4.3.1 2,613 4/30/2014
0.4.2.1 3,132 4/12/2014
0.4.2 3,335 4/11/2014
0.4.2-beta5 2,998 4/11/2014
0.4.2-beta4 3,058 4/11/2014
0.4.2-beta3 2,320 4/4/2014
0.4.2-beta2 2,330 4/4/2014
0.4.2-beta1 2,311 4/1/2014
0.4.1 2,724 2/2/2014
0.4.0.1 2,606 12/31/2013
0.4.0-rc1 2,287 12/16/2013
0.3.2 4,664 11/24/2011
0.3.1 2,870 11/21/2011
0.3.0 2,845 11/20/2011
0.2.0 3,047 10/17/2011
0.1.0 3,392 10/6/2011