如何阻止点击scrollviewer里面的单位内容时，自动滚动

<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="Background" Value="Transparent" />
<EventSetter Event="RequestBringIntoView" Handler="OnRequestBringIntoView" />//这句话起作用
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">

<ContentPresenter HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

//cs代码
private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
        {
            e.Handled = true;
        }