WPF 滚动轮播文字（走马灯效果）

XAML调用示例：

<pp:RunningText Grid.Row="2" Grid.Column="1" Padding="12 6" Space="0" Speed="120" FontSize="12" Direction="LeftToRight" Background="#5D6B99" Foreground="#FFFFFF"
                Text="滚动轮播文字（走马灯效果）；可调节滚动速度、首尾间距...">
    <pp:RunningText.Style>
        <Style TargetType="{x:Type pp:RunningText}">
            <Setter Property="VerticalAlignment" Value="Top" />
            <Style.Triggers>
                <Trigger Property="Direction" Value="BottomToTop">
                    <Setter Property="VerticalAlignment" Value="Stretch" />
                    <Setter Property="HorizontalAlignment" Value="Left" />
                </Trigger>
                <Trigger Property="Direction" Value="TopToBottom">
                    <Setter Property="VerticalAlignment" Value="Stretch" />
                    <Setter Property="HorizontalAlignment" Value="Left" />
                </Trigger>
            </Style.Triggers>
        </Style>
    </pp:RunningText.Style>
</pp:RunningText>

使用 Control 实现自定义控件，源码可加微信号：microsoft-zh