在ComboBox（WPF）中禁用鼠标悬停滚动

Question

是否可以在“ ComboBox下拉列表中禁用自动滚动效果？ 问题是，将鼠标悬停在打开的ComboBox的最后一个元素上时，它将自动滚动到下一个元素。

在我的情况下， ComboBox位于屏幕底部，列表显示为向上，当我打开ComboBox并移动鼠标时，它立即向下滚动。我的XAML如下所示：

<ComboBox x:Name="serverSelection" ScrollViewer.CanContentScroll="False" Width="268" Height="54" FontSize="18" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" SelectedIndex="0">
    <ComboBoxItem Content="xenappts01" HorizontalAlignment="Left" Width="280" Height="54" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
    <ComboBoxItem Content="xenappts02" HorizontalAlignment="Left" Width="280" Height="54" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
    <ComboBoxItem Content="xenappts03" HorizontalAlignment="Left" Width="280" Height="54" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
    <ComboBoxItem Content="xenappts04" HorizontalAlignment="Left" Width="280" Height="54" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
    <ComboBoxItem Content="xenappts05" HorizontalAlignment="Left" Width="280" Height="54" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
    <ComboBoxItem Content="xenappts05c" HorizontalAlignment="Left" Width="280" Height="54" HorizontalContentAlignment="Center" VerticalContentAlignment="Center"/>
</ComboBox>

我试图设置ScrollViewer.CanContentScroll="False"但是没有用。

看起来是这样的：

https://i.stack.imgur.com/GcwJX.gif

谢谢你的帮助！

Answer 1

您可以为ComboBoxItem容器处理RequestBringIntoView事件：

<ComboBox>
    <ComboBox.ItemContainerStyle>
        <Style TargetType="ComboBoxItem">
            <EventSetter Event="RequestBringIntoView" Handler="ComboBox_RequestBringIntoView"/>
        </Style>
    </ComboBox.ItemContainerStyle>
</ComboBox>

---

private void ComboBox_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
    e.Handled = true;
}