wpf - 用于非路由事件的 EventSetter？

Question

我有一个 Label我正在尝试更改 MouseDown用户是否使用 Trigger 登录的事件.

<Label x:Name="lblSave" MouseDown="lblSave_MouseDown" VerticalAlignment="Center" RenderTransformOrigin="0.5,0.5" ToolTip="Save Files"  Width="25" Height="25" Margin="0, 0, 5, 0"  >
<Label.Style>
    <Style TargetType="{x:Type Label}">
        <Setter Property="Background" Value="{DynamicResource ResourceKey=saveIcon}" />
        <Style.Triggers>
            <DataTrigger Binding="{Binding Source={x:Static sec:Security.Instance}, Path=IsLoggedIn}" Value="False">
                <Setter Property="Background" Value="{DynamicResource ResourceKey=readonlyIcon}" />
                <EventSetter Event="MouseDown" Handler="lblNoAccess_MouseDown" />
            </DataTrigger>
        </Style.Triggers>
    </Style>
</Label.Style>

但是，与 this相反发布，我将无法使用，因为 MouseDown不是路由事件。我仍然收到 System.Windows.EventSetter.Event错误: {"Value cannot be null.\r\nParameter name: value"} .

所以我的问题是，有没有办法使用触发器来设置非路由事件？

Answer 1

来自 documentation :

Note that only Style.Setters supports EventSetter objects. Triggers (TriggerBase and derived classes) do not support EventSetter.

(同样如评论中所述， MouseDown 被路由。)