How to remove legend String when there value is 0 ( I remove graph when their value 0 in StackedColumnSeries)

[nitish chauhan]

I remove Graph when their value is 0 but i am not abel to remove legend String.

[Lokesh Palani]

Hi nitish,

You can achieve your requirement by using the name property in the chart series. By using the name property, you can customize the legend text. We have provided a code snippet for your reference. Please inform us if you require any additional assistance.

Code snippet:

 series: <ChartSeries>[

StackedColumnSeries<ChartSampleData, String>(

name: chartData.isNotEmpty ? 'Series' : '',

color: Colors.red,

dataSource: chartData,

xValueMapper: (ChartSampleData data, _) => data.x,

yValueMapper: (ChartSampleData data, _) => data.y1,

   ),

 

Regards,

Lokesh.

[nitish chauhan]

Hi Lokesh

   I also remove graph data and remove legend item.

[Lokesh Palani]

Hi Nitish,

You can achieve your requirement by using the isVisibleInLegend property in the series. By using this, you can remove the legend item when there is no data. We have shared a code snippet and sample for your reference. Please let us know if you need any further assistance.

Code snippet:

StackedColumnSeries<ChartSampleData, String>(

                color: Colors.blue,

                dataSource: chartData,

                isVisibleInLegend: chartData.isNotEmpty ? true : false,

                xValueMapper: (ChartSampleData data, _) => data.x,

                yValueMapper: (ChartSampleData data, _) => data.y2,

              ),

 

Regards,

Lokesh.

Attachment: chart_182341_44c6498a.zip