ScrollViewerNativeBaseStyle

The default style of the native ScrollViewer is not recommended. It should always be used by other styles based on On.

Case:

<ScrollViewer>
   <Grid Height="500">
      <TextBlock Text="Content area"></TextBlock>
   </Grid>
</ScrollViewer>

effect:

ScrollViewerUpDown

ScrollViewer style showing up and down buttons

Case:

<ScrollViewer Style="{StaticResource ScrollViewerUpDown}">
    <StackPanel Height="500">
        <TextBlock Text="Content area" Height="250"></TextBlock>
        <TextBlock Text="Content area" Height="250"></TextBlock>
        <TextBlock Text="Content area"></TextBlock>
        <TextBlock Text="Content area"></TextBlock>
    </StackPanel>
</ScrollViewer>

effect: