How to Replace System.Windows.Interactivity in WPF Projects?

Missing System.Windows.Interactivity in WPF: A Modern Solution

Many WPF developers face the challenge of missing the System.Windows.Interactivity library. While Expression Blend was previously suggested, a more current and robust solution exists.

Migrating to Microsoft.Xaml.Behaviors.Wpf

Microsoft has open-sourced the XAML Behaviors library, offering a superior alternative to the older System.Windows.Interactivity. This approach eliminates the need for Expression Blend. The official migration guide can be found here:

https://www.php.cn/link/65d141290a7de8a5c5ad8c972e8e6eff

The migration process involves these simple steps:

1. Remove existing references to "Microsoft.Expression.Interactions" and "System.Windows.Interactivity".
2. Install the Microsoft.Xaml.Behaviors.Wpf NuGet package.
3. Update your XAML namespaces, replacing xmlns declarations with "http://schemas.microsoft.com/xaml/behaviors".
4. Modify your C# code, replacing using statements for "Microsoft.Xaml.Interactivity" and "Microsoft.Xaml.Interactions" with "Microsoft.Xaml.Behaviors".

By following these steps, you can seamlessly integrate the functionality of the former System.Windows.Interactivity library into your WPF projects using the modern and supported XAML Behaviors library.

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