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How to change the legend icons.

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You can customize the legend icon symbol for each series using legendIcon property of ChartSeries. Following are the symbols you can set for legendIcon,

  • Rectangle
  • StraightLine
  • Circle
  • Diamond
  • Pentagon
  • Triangle
  • InvertedTriangle
  • Cross
  • SeriesType

[Note: When you set legendIcon to seriesType, the shape of the icon will be the prototype of the respective series]

Objective-C

if(index == 0) {
 SFColumnSeries *series = [[SFColumnSeries alloc]init];
 series.legendIcon   = SFChartLegendIconTriangle;
 return series;
}
 else if(index == 0) {
 SFColumnSeries *series1 = [[SFColumnSeries alloc]init];
 series1.legendIcon   = SFChartLegendIconSeriesType;
 return series1;
} 
else{
 SFColumnSeries *series2 = [[SFColumnSeries alloc]init];
 series2.legendIcon   = SFChartLegendIconInvertedTriangle;
 return series2;
}

 

Swift

if (index==0){
var series : SFColumnSeries  = SFColumnSeries();
series.legendIcon = SFChartLegendIcon.Triangle;
return series;
}
else if(index == 1){
var series1 : SFColumnSeries = SFColumnSeries ();
series1.legendIcon  = SFChartLegendIcon.Triangle;
return series1
}
else {
var series2 : SFColumnSeries = SFColumnSeries ();
series2.legendIcon  = SFChartLegendIcon.Triangle;
return series2;
}

 

Xamarin.iOS (C#)

if (index == 0) {
 SFColumnSeries series = new SFColumnSeries (); series.LegendIcon = SFChartLegendIcon.Triangle; return series;} 
else if (index == 1) { SFColumnSeries series1 = new SFColumnSeries (); series1.LegendIcon = SFChartLegendIcon.SeriesType; return series1;} 
else {
 SFColumnSeries series2 = new SFColumnSeries ();
 series2.LegendIcon = SFChartLegendIcon.InvertedTriangle; return series2;}

 

The following screenshot displays the different legend icons for each series,

C:\Users\yuvaraj.palanisamy\Pictures\android5.png

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