How to correctly handle an event in WPF?

Question

.NET

We need to handle the KeyDown event on a Slider in WPF. As far as I understand, the use of events is discouraged in MVVM. How to implement our plans with the help of commands and what would be the best solution?

Answer 1

They are just used a little differently. If you are not yet using a framework for MVVM, then I advise you to start right away with it. For example Prism:
add

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

and process:

<Button Content="нажать" >
    <i:Interaction.Triggers>
        <i:EventTrigger EventName="KeyDown">
            <i:InvokeCommandAction Command="{Binding KeyDownCommand}"   CommandParameter="param"/>
        </i:EventTrigger>
    </i:Interaction.Triggers>
</Button>