BlurEffect.MainPage.TouchArea_ManipulationDelta C# (CSharp) Method

        void TouchArea_ManipulationDelta(object sender, ManipulationDeltaRoutedEventArgs e)
        {
            // get the movement on X axis
            _x += (float)e.Delta.Translation.X;

            // keep the pan within the bountry
            if (_x < -this.ImagePanel.ActualWidth / 2 || _x > 0) return;

            // set the pan rectangle's visual's offset
            _touchAreaVisual.Offset = new Vector3(_x, 0.0f, 0.0f);
            // kick off the effect visual's animation so to have both visuals' offset in sync
            _visual.StartAnimation("Offset.X", _animation);
        }