public void OnPageScrolled(int position, float positionOffset, int positionOffsetPixels)
{
if (_listener != null)
_listener.OnPageScrolled(position, positionOffset, positionOffsetPixels);
if (null != PageScrolled)
PageScrolled(this,
new PageScrolledEventArgs
{
Position = position,
PositionOffset = positionOffset,
PositionOffsetPixels = positionOffsetPixels
});
}