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Syncfusion Feedback

Annotation tooltip doesn't show when using crosshair.

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140992 Nov 17,2018 12:54 PM UTC Nov 19,2018 09:09 AM UTC WPF 3
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Tags: SfChart
Tom
Asked On November 17, 2018 12:54 PM UTC

Hello, when using crosshair, annotation tooltips don't show.

Run the attached example. Hover the mouse pointer over the red circle. Tooltip doesn't show. Now comment out the xaml:

<chart:SfChart.Behaviors>
<chart:ChartCrossHairBehavior HorizontalLineStyle="{StaticResource lineStyle}" VerticalLineStyle ="{StaticResource lineStyle}"/>
</chart:SfChart.Behaviors>

to remove the crosshairs and run the test again. Now the tooltip shows.

Is it possible to have the tooltip displayed when using crosshairs?

Thank you.

Attachment: sfChartCrossHair_76fcc85e.rar

Muneesh Kumar G [Syncfusion]
Replied On November 19, 2018 07:09 AM UTC

Hi Tom, 
 
Greetings from Syncfusion, we have analyzed your requirement. We would like to inform you that this problem occurs due to cross hair line interrupts the annotation tooltip interaction. You can resolve this problem by setting IsHitTestVisible for cross hair line as per the below code snippet.  
 
Code snippet 
           <chart:SfChart.Resources> 
                <Style TargetType="Line" x:Key="lineStyle"> 
                    <Setter Property="Stroke" Value="Black" ></Setter> 
                    <Setter Property="StrokeThickness" Value="1"></Setter> 
                    <Setter Property="IsHitTestVisible" Value="False"/> 
                </Style> 
            </chart:SfChart.Resources> 
 
We have modified our sample based on this, please find the sample from the following location.  
 
 
Hope it helps.  
  
Regards,  
Muneesh Kumar G. 


Tom
Replied On November 19, 2018 08:44 AM UTC

That's a nice solution, thank you Muneesh.

Muneesh Kumar G [Syncfusion]
Replied On November 19, 2018 09:09 AM UTC

Hi Tom,  
 
Thanks for the update. 
  
We are glad to know that the given solution works. Please let us know if you need any further assistance. 
 
Regards,  
Muneesh Kumar G. 


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