获取 Windows Phone 上 ScrollViewer 的滚动事件

发布于 2024-10-21 11:15:03 字数 641 浏览 5 评论 0原文

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

我有一个像这样的滚动查看器：

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

我需要 MyScroller 发生滚动时的事件：

// 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

原文

Question:
Get scroll event for ScrollViewer on Windows Phone

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>

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

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逆流 2024-10-28 11:15:03

MouseMove 在 ScrollViewer 滚动时触发：

public MainPage()
{
    InitializeComponent();

    MyScroller.MouseMove += MyScroller_MouseMove;
}

void MyScroller_MouseMove(object sender, MouseEventArgs e)
{
    throw new NotImplementedException();// This will fire
}

它不直观，因为它被命名为“鼠标”事件，并且手机上没有鼠标。但是，触摸点确实相对于 ScrollViewer 容器移动，这就是它处理滚动的方式。

MouseMove fires when ScrollViewer is scrolled:

public MainPage()
{
    InitializeComponent();

    MyScroller.MouseMove += MyScroller_MouseMove;
}

void MyScroller_MouseMove(object sender, MouseEventArgs e)
{
    throw new NotImplementedException();// This will fire
}

It isn't intuitive, since it is named as a "mouse" event and there is no mouse on the phone. The touch point does move, however, relative to the ScrollViewer container, which is how it can handle scrolling.

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