Functionality3.xaml

<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="SampleApp.Views.Functionality3">
    <ContentPage.Content>
        <StackLayout VerticalOptions="CenterAndExpand" HorizontalOptions="CenterAndExpand">
            <Label Text="Click the button below" x:Name="label"></Label>
            <Button Clicked="Button_Clicked" Text="Assign focus to the label above" x:Name="button"></Button>
        </StackLayout>
    </ContentPage.Content>
</ContentPage>