show tooltip for the last data

[shvansheikha]

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

[Dharanidharan Dharmasivam]

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 

            ) 

 

 

 

 

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/sample-728656088  

For more information on annotation, find the user guide. 

 

Hope this helps. 

 

Thanks, 

Dharani.