Previously I have been able to define control templates for line symbols in the xaml to animate lines. The below for example provided a moving dashed line to indicate a direction of the line with an animated graphic rather than a simple arrow marker symbol.
<Grid.Resources>
<esriSymbols:LineSymbol x:Name="TestLineSymbol">
<esriSymbols:LineSymbol.ControlTemplate>
<ControlTemplate>
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard RepeatBehavior="Forever">
<DoubleAnimation BeginTime="0:0:0" Storyboard.TargetName="Element"
Storyboard.TargetProperty="StrokeDashOffset"
To="1000" Duration="0:0:0"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Path x:Name="Element" Stroke="{Binding Symbol.Color}" StrokeThickness="{Binding Symbol.Width}" StrokeEndLineCap="Round" StrokeStartLineCap="Round"/>
</Grid>
</ControlTemplate>
</esriSymbols:LineSymbol.ControlTemplate>
</esriSymbols:LineSymbol>
</Grid.Resources>Does anyone have any suggestions on how to implement similar functionality now?
