show tooltip for the last data

I use Syncfusion charts in my app but I need to always show a box that contains is the last information. like this image.


1 Reply

DD Dharanidharan Dharmasivam Syncfusion Team December 9, 2019 06:31 AM UTC

Hi Shvansheikha, 
 
Greetings from Syncfusion. Your requirement can be achieved using the annotation feature. We have created a sample based on your scenario in which we have displayed the y-value of last data using the annotation and you can change this based on your scenario. Find the code snippet below to achieve this, 
 
 
SfCartesianChart( 
annotations: <CartesianChartAnnotation>[ 
            CartesianChartAnnotation( 
                widget: Container( 
                   child: Text( 
                      chartData[chartData.length - 1].sales.toString(), 
                    )), 
                coordinateUnit: CoordinateUnit.logicalPixel, 
                region: AnnotationRegion.plotArea, 
                x: 300, 
                y: 20), 
          ], 
            // Other configurations 
            ) 
 
 
 
 
For more information on annotation, find the user guide. 
 
Hope this helps. 
 
Thanks, 
Dharani. 


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