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Binding SelectionChanged to a ViewModel Command

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Kerry
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Kerry asked on 24 Nov 2020, 07:37 PM

The only way I can see to do this so far, is to create an event handler in the code behind, then call into the view model from there. But, that seems hokey, from an MVVM perspective.

Is there a simple, straightforward way to set up the command binding from the markup instead?

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Lance | Manager Technical Support
Telerik team
answered on 24 Nov 2020, 09:26 PM

Hello Kerry,

For events that do not have a command equivalent, you can use an EventToCommandBehavior. You will find a complete tutorial here Xamarin.Forms - EventToCommand Behavior in MVVM ViewModel (c-sharpcorner.com)

If you would like to see a completed version of that behavior, take a look at one of my custom demos Behaviors folder . In that example, I use an EventToCommandBehavior to invoke a command when the Focused event is invoked, see Lines 22 to 27 here.

Regards,
Lance | Manager Technical Support
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