问题
I find it is scrolling too much at a time when the mouse scroll wheel is used. I have a very short ScrollViewer (one line tall) that contains a few lines of items in a WrapPanel, and it is scrolling right to the bottom in one "tick" so that the middle line is never visible.
回答1:
Not nice solution but you could add a few panes with text - one panel each line
ScrollViewer class uses IScrollInfo interface and there are 2 methods.
((IScrollInfo)myPanel).LineUp();// and LineDown()
Add a method to UIElement.MouseWheel event and one rotation == one children of a panel.
...or you could use:
myScrollviewer.ScrollToVerticalOffset(offset);
来源：https://stackoverflow.com/questions/3358962/is-it-possible-to-adjust-mouse-wheel-scroll-distance-on-a-wpf-scrollviewer