c# - Binding Commands to Events?

Question

What's a good method to bind Commands to Events? In my WPF app, there are events that I'd like to capture and process by my ViewModel but I'm not sure how. Things like losing focus, mouseover, mousemove, etc. Since I'm trying to adhere to the MVVM pattern, I'm wondering if there's a pure XAML solution.

Thanks!

Answer 1

Use System.Windows.Interactivity

…xmlns:i=http://schemas.microsoft.com/expression/2010/interactivity…

<Slider    
    <i:Interaction.Triggers>    
        <i:EventTrigger EventName="ValueChanged">
            <i:InvokeCommandAction    
                Command="{Binding MyCommand}"    
                CommandParameter="{Binding Text, ElementName=textBox}"/>
        </i:EventTrigger>
    </i:Interaction.Triggers>
</Slider>

Make sure your project references the assembly System.Windows.Interactivity.

Source: MSDN Blog Executing a command from an event of your choice

[Update] Have a look to to Microsoft.Xaml.Behaviors.Wpf (available since 03.12.2018) Official package by Microsoft.