#883 – ScrollViewer Is a ContentControl

Because a ScrollViewer is a ContentControl, it can contain exactly one child element.  The size of the child element is typically larger than the actual size of the ScrollViewer.  You then use the scrollbars in the ScrollViewer to scroll the larger child element within the smaller view.

As a ContentControl, a ScrollViewer will typically contain a Panel control, which in turn can contain a number of different children.  However, the ScrollViewer might also just contain a single child control that is not a panel.

In the example below, the ScrollViewer contains a single Image that can then be scrolled within the parent window.

    <ScrollViewer HorizontalScrollBarVisibility="Auto"
                  VerticalScrollBarVisibility="Auto">
        <Image Source="Augustus.jpg"/>
    </ScrollViewer>