在Windows Phone上获取ScrollViewer的滚动事件 [英] Get scroll event for ScrollViewer on Windows Phone

问题描述

问题：
在Windows Phone上获取ScrollViewer的滚动事件

Question: Get scroll event for ScrollViewer on Windows Phone

我有一个滚动浏览器，如下所示：

I have a scrollviewer like so:

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
    <ScrollViewer x:Name="MyScroller">
        <StackPanel>
            <!-- ... -->
        </StackPanel>
    </ScrollViewer>
</Grid>

当MyScroller发生滚动时，我需要事件：

I need the event for when the scrolling occurs for MyScroller:

// MyScroller.Scroll += // <-- "Scroll" event does not exist on ScrollViewer
MyScroller.MouseWheel += MyScroller_MouseWheel; // Does not fire on scroll
MyScroller.ManipulationDelta += MyScroller_ManipulationDelta; // Fires for pinch-zoom only

推荐答案

这不是简单的，但是在这个问题上写了几个滚动检测机制：

It's not that simple, but there's a few scroll detection mechanisms written in this question:

WP7 Auto Grow ListBox upon reaching the last item

基本上看看OnListVerticalOffsetChanged被调用并使用。

Basically take a look at the way OnListVerticalOffsetChanged is called and used.

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