【CN20192.1.12】【C1FlexChart.Layers如何使用】

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想请问在C1FlexChart.Layers中如何如何实现类似C1Chart中的可以移动的十字（下面代码）
<c1:ChartView.Layers>
                     <c1:ChartPanel>
                        <c1:ChartPanelObject x:Name="obj" Attach="DataXY"  Action="MouseMove"
                                             HorizontalAlignment="Right" VerticalAlignment="Bottom"  DataPoint="5,0"
                                             Visibility="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType=c1:ChartPanel}, Path=IsMouseOver,Converter={StaticResource booleanToVisibilityConverter}}">
                              <Border Background="{DynamicResource brush_LiveData_chart_Layers_tip_backgroud}"  BorderBrush="Green"
                                    DataContext="{Binding RelativeSource={x:Static RelativeSource.Self},Path=Parent}"
                                    BorderThickness="1,1,3,3" CornerRadius="6,6,0,6" Padding="3">
                                 <StackPanel>
                                    <TextBlock Text="{Binding DataPoint.X,StringFormat='x={0:F5}'}"/>
                                    <TextBlock Text="{Binding DataPoint.Y,StringFormat='y={0:F5}'}" />
                                 </StackPanel>
                              </Border>
                        </c1:ChartPanelObject>

      </c1:ChartPanel>
</c1:ChartView.Layers>