How to add System Windows Interactivity to project

Question

My project missing System Windows Interactivity  Google says that I have to install Expression Blend  but on my other computer I have this library and I don t have Expression Blend installed  So there should be another way to obtain System Windows Interactivity  What should I do   right now i don t have another computer so I can not just copy this library

User · Answer

If you are working with MVVM Light you have to use the System.Windows.Interactivity Version 4.0 (the NuGet .dll wont work) that you can find under :

PathToProjectFolder\Software\packages\MvvmLightLibs.5.4.1.1\lib\net45\System.Windows.Interactivity.dll

Just add this .dll manually as Reference and it should be fine.

User · Answer

There is a new NuGet package that contains the System Windows Interactivity dll that is compatible with    WPF 4 0  4 5 Silverligt 4 0  5 0 Windows Phone 7 1  8 0 Windows Store 8  8 1   To install Expression Blend Sdk  run the following command in the Package Manager Console  PM gt  Install-Package Expression Blend Sdk   http   www nuget org packages Expression Blend Sdk

User · Answer

The official package for behaviors is Microsoft Xaml Behaviors Wpf  It used to be in the Blend SDK  deprecated   See Jan s answer for more details if you need to migrate

User · Answer

With Blend for Visual Studio  which is included in Visual Studio starting with version 2013  you can find the DLL in the following folder   C  Program Files  x86  Microsoft SDKs Expression Blend  NETFramework v4 5 Libraries   You will have to add the reference to the System Windows Interactivity dll yourself though  unless you use Blend for Visual Studio with an existing project to add functionality that makes use of the Interactivity namespace  In that case  Blend will add the reference automatically

User · Answer

Alternative solution is to modify your current Visual Studio installation in the Visual Studio Installer  Win R  ProgramFiles x86   Microsoft Visual Studio Installer vs installer exe adding the Blend for Visual Studio SDK for  NET  Individual component  under  SDKs  libraries  and frameworks     after adding this component System Windows Interactivity should appear in its regular location Add Reference Assemblies Extensions   It appears this would only work for VS2017 or earlier  For later versions  please refer to other answers

User · Answer

I got it via the Prism WPF NuGet-Package   it includes Windows System Interactivity

User · Answer

Sometimes  when you add a new library  in introduces a clashing version of System Windows Interactivity dll   For example  the NuGet package MVVM light might require v4 2 of System Windows Interactivity dll  but the NuGet package Rx-XAML might require v4 5 of System Windows Interactivity dll  This will prevent the the project from working  because no matter which version of System Windows Interactivity dll you include  one of the libraries will refuse to compile   To fix  add an Assembly Binding Redirect by editing your app config to look something like this    lt  xml version  1 0   gt   lt configuration gt   lt runtime gt     lt assemblyBinding xmlns  urn schemas-microsoft-com asm v1  gt       lt dependentAssembly gt         lt assemblyIdentity name  System Windows Interactivity                          publicKeyToken  31bf3856ad364e35                          culture  neutral   gt         lt bindingRedirect oldVersion  4 0 0 0                         newVersion  4 5 0 0    gt       lt  dependentAssembly gt     lt  assemblyBinding gt   lt  runtime gt   lt startup gt  lt supportedRuntime version  v4 0  sku   NETFramework Version v4 5   gt  lt  startup gt   lt appSettings gt     lt add key  TestKey  value  true   gt   lt  appSettings gt      Don t worry about changing the PublicKeyToken  that s constant across all versions  as it depends on the name of the  dll  not the version   Ensure that you match the newVersion in your appConfig to the actual version that you end up pointing at

User · Answer

It s in MVVM Light  get it from the MVVM Light Download Page

User · Answer

I have had the exact same problem with a solution  that System Windows Interactivity was required for one of the project in Visual Studio 2019  and I tried to install Blend for Visual Studio SDK for  NET from Visual Studio 2019 Individual components  but it did not exist in it  The consequence of that  I was not able to build the project in my solution with repetitive of following similar error on different XAML parts of the project   The tag  Interaction Behaviors  does not exist in XML namespace  clr-namespace System Windows Interactivity assembly System Windows Interactivity     The above mentioned errors snapshot example The solution  the way I solved it  is by installing Microsoft Expression Blend Software Development Kit  SDK  for  NET 4 from Microsoft  Thanks to my colleague  felza  mentioned that System Windows Interactivity requires this sdk  that is suppose to be located in this folder  C  Program Files  x86  Microsoft SDKs Expression Blend  NETFramework v4 0  In my case it was not installed  I have had this folder C  Program Files  x86  Microsoft SDKs with out Expression Blend  NETFramework v4 0 folder inside it  After installing it  all errors disappeared

User · Answer

The easiest way might be to get it from NuGet   http   www nuget org packages System Windows Interactivity WPF

User · Answer

Although this issue is quite old  i think this is relevant news   the most recent answer  Microsoft open-sourced XAML Behaviours and posted a blog post how to update to this version  https   devblogs microsoft com dotnet open-sourcing-xaml-behaviors-for-wpf   To save you a click  this is the main steps to migrate    Remove reference to    Microsoft Expression Interactions    and    System Windows Interactivity     Install the Microsoft Xaml Behaviors Wpf NuGet package   XAML files     replace  the xmlns namespaces http   schemas microsoft com expression 2010 interactivity and http   schemas microsoft com expression 2010 interactions with http   schemas microsoft com xaml behaviors C  files     replace the usings in c  files    Microsoft Xaml Interactivity    and    Microsoft Xaml Interactions    with    Microsoft Xaml Behaviors

[c#] How to add System.Windows.Interactivity to project?

Examples related to c#

Examples related to wpf