UWP - ScrollViewer scroll to bottom

MainPage.xaml


<Page
    x:Class="UniversalAppTutorials.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:UniversalAppTutorials"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    >
    <ScrollViewer
        x:Name="ScrollViewer1"
        Background="FloralWhite" 
        HorizontalScrollBarVisibility="Auto"
        VerticalScrollBarVisibility="Auto"
        >
        <StackPanel Orientation="Vertical" Padding="50">
            <Button
                x:Name="Button1"
                Content="Scroll To Bottom"
                Click="Button1_Click"
                />
            <TextBlock Text="A" FontSize="150"/>
            <TextBlock Text="B" FontSize="150"/>
            <TextBlock Text="C" FontSize="150"/>
            <TextBlock Text="D" FontSize="150"/>
            <TextBlock Text="E" FontSize="150"/>
            <TextBlock Text="F" FontSize="150"/>
            <TextBlock Text="G" FontSize="150"/>
            <TextBlock Text="H" FontSize="150"/>
            <TextBlock Text="I" FontSize="150"/>
            <TextBlock Text="J" FontSize="150"/>
            <TextBlock Text="K" FontSize="150"/>
            <TextBlock Text="L" FontSize="150"/>
            <TextBlock Text="M" FontSize="150"/>
            <TextBlock Text="N" FontSize="150"/>
            <TextBlock Text="O" FontSize="150"/>
            <TextBlock Text="P" FontSize="150"/>
            <TextBlock Text="Q" FontSize="150"/>
            <TextBlock Text="R" FontSize="150"/>
            <TextBlock Text="S" FontSize="150"/>
            <TextBlock Text="T" FontSize="150"/>
            <TextBlock Text="U" FontSize="150"/>
            <TextBlock Text="V" FontSize="150"/>
            <TextBlock Text="W" FontSize="150"/>
            <TextBlock Text="X" FontSize="150"/>
            <TextBlock Text="Y" FontSize="150"/>
            <TextBlock Text="Z" FontSize="150"/>
        </StackPanel>
    </ScrollViewer>
</Page>

MainPage.xaml.cs


using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml;


namespace UniversalAppTutorials
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        private void Button1_Click(object sender, RoutedEventArgs e)
        {
            /*
                UIElement.UpdateLayout
                    Ensures that all positions of child objects of
                    a UIElement are properly updated for layout.
            */

            ScrollViewer1.UpdateLayout();

            /*
                ScrollViewer.ChangeView
                    Causes the ScrollViewer to load a new view into
                    the viewport using the specified offsets and zoom factor.
            */

            // Programmatically scroll to bottom
            ScrollViewer1.ChangeView(
                0.0f, // horizontalOffset
                double.MaxValue, // verticalOffset
                1.0f // zoomFactor
                );

            // Another way to programmatically scroll to bottom
            // But above way is better
            //ScrollViewer1.ScrollToVerticalOffset(ScrollViewer1.ScrollableHeight);
        }
    }
}