XAML:
<ScrollViewer HorizontalAlignment="Center" PreviewMouseWheel="myScrollViewer_PreviewMouseWheel" Name="myScrollViewer" VerticalScrollBarVisibility="Disabled" HorizontalScrollBarVisibility="Auto">
<Grid Width="1200">
<ListBox ScrollViewer.VerticalScrollBarVisibility="Visible" MouseMove="listbox_MouseMove" Background="AliceBlue" Height="350" Width="200" HorizontalAlignment="Center" Name="listbox"/>
</Grid>
</ScrollViewer>
CS:
private void myScrollViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
{
if (e.Delta < 0) // wheel down
{
if (myScrollViewer.HorizontalOffset + e.Delta > 0)
{
myScrollViewer.ScrollToHorizontalOffset(myScrollViewer.HorizontalOffset + e.Delta);
}
else
{
myScrollViewer.ScrollToLeftEnd();
}
}
else //wheel up
{
if (myScrollViewer.ExtentWidth > myScrollViewer.HorizontalOffset + e.Delta)
{
myScrollViewer.ScrollToHorizontalOffset(myScrollViewer.HorizontalOffset + e.Delta);
}
else
{
myScrollViewer.ScrollToRightEnd();
}
}
}
现在,鼠标滚轮事件滚动查看器正在滚动,如果我的鼠标移过ListBox。我想:如果我的鼠标越过ListBox并保持一段时间(可能是1或2秒),滚动应该移动到ListBox。如果鼠标没有停留在ListBox上一段时间(1或2秒),则滚动不应移动到ListBox。 ScrollViewer中可能有多个ListBox。
答案 0 :(得分:0)
将其添加到您的列表框中:
ScrollViewer.CanContentScroll = “真”