스크롤시 프로그램창 자체가 움직일때 해결

<ScrollViewer PanningMode="Both" x:Name="ScrollViewer"ManipulationBoundaryFeedback="ScrollViewer_ManipulationBoundaryFeedback">

    <StackPanel Width="300">

    </StackPanel>

</ScrollViewer>

private void ScrollViewer_ManipulationBoundaryFeedback(object sender, ManipulationBoundaryFeedbackEventArgs e)

{

    e.Handled = true;

}