Annotation position

[Bar Ilan]

Hi,

I'm trying to put annotations on const position (only x) my y is DateTime and X is double, as shown in the picture:

I using 

LineSeries<GetSymbolChartRespItemDto, DateTime> lineChart()
 Copy

Is it possible to achieve this?

[Natrayan Ramalingam]

Hi Bar,

Your requirement can be achieved with the help of the axisLabelFormatter callback which is available in the axis and also you can customize the text from the callback argument by using the textStyle and return it as ChartAxisLabel. Please refer to the following code snippet.

primaryYAxis: NumericAxis(

   axisLabelFormatter: (args) {

       return ChartAxisLabel(

              args.text,

              args.text == "79.72" || args.text == "79.74"

                  ? const TextStyle(

                      backgroundColor: Colors.black,

                      color: Colors.white,

                    )

                  : args.textStyle,

      );

   },

)

Screenshot:

For more details, refer to the UG:

https://help.syncfusion.com/flutter/cartesian-charts/callbacks#axislabelformatter

Regards,

Natrayan