WPF ListView 通过按钮单击滚动整个页面（查看项目）

Question

I've created a listview in WPF. The items in there are changing their backgroundcolor by clicking, in this case i deactivated the listview prop 'Focusable'. For my usecase (on a touchscreen) i want to hide the scrollbar and just scroll by clicking an up/down button at the bottom. One click should scroll the whole page (UP/DOWN) and show the next (so far hided) items. I'm seraching for a flexible solution and don't want to calculate pixels or smth like that (also the items haven't a fixed height, also the window)

Thanks in advance

Answer 1

First off, it might benefit you to take a look at How do I ask a good question? . Specifically, in your case it would be easier to understand the sitution if you included some of your XAML. However, I do think I have a solution for you.

ItemsControl s like the ListView support "content scrolling", meaning the ability to scroll by content/items instead of by pixel. This question gives a solution to finding which items are currently visible in the ListView by accessing the internal ScrollViewer . ScrollViewer.VerticalOffset will tell you the index first visible item and ScrollViewer.ViewportHeight will tell you how many items are visible. To scroll to the "next page", you should just need to:

ScrollViewer.VerticalOffset += ScrollViewer.ViewportHeight;