Attributes

Property
Spacing
IsPlaying
ScrollingPixelsPreSecond

Example With TextBlock

<dev:AutoScrollView IsPlaying="True">
    <TextBlock Text="Long Text"
               TextTrimming="None" />
</dev:AutoScrollView>

Example With Button Content

<ToggleButton MaxWidth="150"
              Margin="0,20"
              Padding="0,5,0,6"
              IsChecked="True">
    <dev:AutoScrollView Padding="11,0"
                        IsPlaying="True">
        <TextBlock Text="Long Text"
                   TextTrimming="CharacterEllipsis" />
    </dev:AutoScrollView>
</ToggleButton>

Example / Run Fast

<dev:AutoScrollView Margin="0,20"
                    IsPlaying="True"
                    ScrollingPixelsPreSecond="200">
    <TextBlock Text="Long Text"
               TextTrimming="None" />
</dev:AutoScrollView>

Example with OpacityMaskView

<dev:OpacityMaskView>
    <dev:OpacityMaskView.OpacityMask>
        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
            <GradientStop Offset="0" Color="Transparent" />
            <GradientStop Offset="0.02" Color="#FFFFFFFF" />
            <GradientStop Offset="0.98" Color="#FFFFFFFF" />
            <GradientStop Offset="1" Color="Transparent" />
        </LinearGradientBrush>
    </dev:OpacityMaskView.OpacityMask>
    <dev:AutoScrollView Margin="0,20"
                        Padding="10,0"
                        IsPlaying="True">
        <TextBlock Text="Long Text"
                   TextTrimming="None" />
    </dev:AutoScrollView>
</dev:OpacityMaskView>

Example With Mouse Hover

<dev:AutoScrollView x:Name="AutoScrollHoverEffectView"
                    Margin="0,20"
                    PointerCanceled="AutoScrollHoverEffectView_PointerCanceled"
                    PointerEntered="AutoScrollHoverEffectView_PointerEntered"
                    PointerExited="AutoScrollHoverEffectView_PointerExited"
                    IsPlaying="False">
    <TextBlock Text="Long Text"
               TextTrimming="CharacterEllipsis" />
</dev:AutoScrollView>

private void AutoScrollHoverEffectView_PointerCanceled(object sender, Microsoft.UI.Xaml.Input.PointerRoutedEventArgs e)
{
    AutoScrollHoverEffectView.IsPlaying = false;
}

private void AutoScrollHoverEffectView_PointerEntered(object sender, Microsoft.UI.Xaml.Input.PointerRoutedEventArgs e)
{
    AutoScrollHoverEffectView.IsPlaying = true;
}

private void AutoScrollHoverEffectView_PointerExited(object sender, Microsoft.UI.Xaml.Input.PointerRoutedEventArgs e)
{
    AutoScrollHoverEffectView.IsPlaying = false;
}

Demo

you can run demo and see this feature.