NextButtonClicked プロパティ

// The client side event NextButtonClicked takes two parameters, sender and e.
// Sender is the object which is raising the event
// e is the ImageViewerButtonEventArgs
function WebImageViewer_NextButtonClicked(sender, e) {
  var imageViewer = $find("WebImageViewer1");
            
   // Gets the HTML DOM element associated with the event 
   var buttonElement = e.getButtonElem();
           
   // Get the scroll animation object  
   var scrollAnimations = imageViewer.get_scrollAnimations();

   // Set the Animation type to continuous
   scrollAnimations.set_type($IG.ScrollAnimation.Continuous);

   // Specify the direction
   imageViewer.navigateNext();
}