Manipulation event and panning mode simultaneously in Scrollvewer.

I am developing a WPF for touch enabled device. I am facing a strange problem. My XAML structure is

     <ScrollViewer>
         <StackPanel orientation="Horizontal">
             <!--  Control goes here -->
          </StackPanel>
      <ScrollViewer>

Now

 1.  To enable scrolling on touch I have to set PannigMode toHorizontalOnly
 2.  To receive manipulation events I have to set PannigMode toNone

Problem is I have to have these two functionality simultaneously.

Is there any work around so that the scrollviewer is scrolled on touch and also themanipulationcompleted event fires.

Please help.