在WPF中.如何通过鼠标拖动滚动ScrollViewer中的对象,就像iPhone一样？

滚动鼠标滚轮或滚动条种子拖动效果很好.但滚动视图上的鼠标拖动内容滚动没有完成.我该如何实施此操作？

        
            
                
                    
                    
                
                
                    
                    
                    
                    
                    
                
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user110777.. 15

我找到了解决这个问题的方法.它跟随......

    Point scrollMousePoint = new Point();
    double hOff = 1;
    private void scrollViewer_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
    {
        scrollMousePoint = e.GetPosition(scrollViewer);
        hOff = scrollViewer.HorizontalOffset;
        scrollViewer.CaptureMouse();
    }

    private void scrollViewer_PreviewMouseMove(object sender, MouseEventArgs e)
    {
        if(scrollViewer.IsMouseCaptured)
        {
            scrollViewer.ScrollToHorizontalOffset(hOff + (scrollMousePoint.X - e.GetPosition(scrollViewer).X));
        }
    }

    private void scrollViewer_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
    {
        scrollViewer.ReleaseMouseCapture();
    }

    private void scrollViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
    {
        scrollViewer.ScrollToHorizontalOffset(scrollViewer.HorizontalOffset + e.Delta);
    }

谢谢!