文字滚动效果

< Canvas x:Name ="c2" >
< Canvas.triggers >
< Eventtrigger RoutedEvent ="Canvas.Loaded" >
< BeginStoryboard >
< Storyboard x:Name ="animation2" RepeatBehavior ="Forever" >
< DoubleAnimation Storyboard.TargetName ="list_fbyj"
Storyboard.TargetProperty ="(Canvas.Top)" From ="110" To ="20" Duration ="0:0:5" />
</ Storyboard >
</ BeginStoryboard >
</ Eventtrigger >
</ Canvas.triggers >
< ListBox x:Name ="list_fbyj" Canvas.Top ="23" Foreground ="#FFD3EAFD" BACkground ="#FFD3EAFD" BorderBrush =" {x:Null} " Canvas.ZIndex ="1" MouseEnter ="list_fbyj_MouseEnter" MouSELEave ="list_fbyj_MouSELEave" >
< ListBox.ItemTemplate >
< DataTemplate >
< StackPanel Orientation ="Horizontal" >
< TextBlock x:Name ="content" FontWeight ="Bold" Foreground ="#FF0000" FontFamily =" {Staticresource FontFamily1} " FontSize ="12" textwrapping ="Wrap" d:LayoutOverrides ="VerticalAlignment" Text =" {Binding 预警摘要} " Width ="185" Height ="60" />
</ StackPanel >
</ DataTemplate >
</ ListBox.ItemTemplate >
</ ListBox >
</ Canvas >