/// <summary>
/// Scrolls the given <paramref name="control"/> down by the height of the <paramref name="control"/> if possible.
/// </summary>
/// <param name="control">
/// A scrollable control to scroll down by one page.
/// </param>
public static void PageDown(this ScrollableControl control)
{
control.ScrollVerticallyBy(+control.Height);
}
/// <summary>
/// Scrolls the given <paramref name="control"/> down by the size of the <paramref name="control"/>'s font if possible.
/// This method is equivalent to the user pressing the "Down" arrow on the <paramref name="control"/>'s scrollbar.
/// </summary>
/// <param name="control">
/// A scrollable control to scroll down.
/// </param>
public static void ScrollDown(this ScrollableControl control)
{
control.ScrollVerticallyBy(+(int)control.Font.Size);
}