DEMO Code for Hello World C# Created by Tim Rayburn

Page.xaml

    <Page.BottomAppBar>
        <AppBar x:Name="bottomBar"
                Padding="10,0,10,0">
            <Grid>
                <StackPanel Orientation="Horizontal"
                            HorizontalAlignment="Right">
                    <Button Style="{StaticResource AddAppBarButtonStyle}"
                            Click="Button_Click" />
                </StackPanel>
            </Grid>
        </AppBar>
    </Page.BottomAppBar>

Page.xaml.cs

        private async void Button_Click(object sender, RoutedEventArgs e)
        {
            var messageDialog = new Windows.UI.Popups.MessageDialog("Hello World!");
            await messageDialog.ShowAsync();
        }