How to Bind command to Loaded event of form

Question

I am trying to run some code when the main form is loaded. I used the code here. I am using wpf with .NET core 3.1 using the MVVM pattern. When I try to add the nuget package System.Windows.Interactivity I get an error This package may not be fully compatible with your project. I am assuming the issue is the version of .NET I am using. Is there a way to make this work for .NET Core 3.1?

Answer 1

System.Windows.Interactivity has been replaced by a nuget package.

Instead of referencing that you add the package:

Microsoft.Xaml.Behaviors.Wpf

You will then need an xmlns.

From https://devblogs.microsoft.com/dotnet/open-sourcing-xaml-behaviors-for-wpf/ ( see for more info ).

Steps to migrate are:

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”

This is net core friendly.

It is not exactly like for like and I found one piece of my code incompatible. For most people this is likely a non-issue though.