can we use in WPF MVVM (not in Silverlight) [closed]

Question

Add a reference to the assembly System.Windows.Interactivity

then declare it in XAML as

xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"

or use it if you have Blend SDK installed

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

and use it in XAML as

<i:Interaction.Triggers>
    <i:EventTrigger>

    </i:EventTrigger>
</i:Interaction.Triggers>