Xamarin.Forms - NumericValidation Behavior
Xamarin.Forms behaviors are created in a class that derives from the Behavior, or Behavior<T> class. This sample demonstrates how to create and consume a Xamarin.Forms behavior.
For more information about this sample, see Behaviors.
<Entry Placeholder="Enter a System.Double"> <Entry.Behaviors> <local:NumericValidationBehavior /> </Entry.Behaviors> </Entry>