从代码中滚动WPF FlowDocumentScrollViewer？

<FlowDocumentScrollViewer x:Name="MyFlowDocumentScrollViewer">
    <FlowDocument>
        <!-- 在此处添加文本、图像、表格等内容 -->
    </FlowDocument>
</FlowDocumentScrollViewer>

private void ScrollToTop()
{
    MyFlowDocumentScrollViewer.ScrollToVerticalOffset(0);
}

private void ScrollToBottom()
{
    MyFlowDocumentScrollViewer.ScrollToEnd();
}

private void ScrollToOffset(double offset)
{
    MyFlowDocumentScrollViewer.ScrollToVerticalOffset(offset);
}