I am looking for Menu items to slide right side when mouse is focused on the Menu strip(menu strip should be in Vertical style)?
                
                A: 
                
                
              
            Use an EventTrigger with the RoutedEvent MouseEnter. Inside the trigger, set up a Storyboard that will animate the TranslateTransform property of MenuItem. Something like this:
<EventTrigger RoutedEvent="MenuItem.MouseEnter">
   <EventTrigger.Actions>
      <BeginStoryboard>
         <Storyboard>
            <DoubleAnimation
             Storyboard.TargetProperty="RenderTransform.(TranslateTransform.X)"
             From="0" To="100"/>
         </Storyboard>
      </BeginStoryboard>
   </EventTrigger.Actions>
</EventTrigger>
                  Charlie
                   2009-07-30 15:55:40