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How to generate customized legends for a IGStackedColumnSeries
posted

Hello,

i am looking for a way for customizing the legends title in an chartview witih stacked columns. They always appears with "Value1", "Value2"....in the graph legend. Is there for e.g. a delegate like ResolveLabelForAxis or ResolveMarkerView to change the legend items dynamicaly?

Thanks, Johann

 

That's my sample-code:

const int legendWidth = 200;

List<NSObject> _data = new List<NSObject>();            

for (int i = 0; i < 5; i++)            

{                

StackedChartData item = new StackedChartData();                

item.Value1 = new Random((int)DateTime.Now.Ticks).Next(100);                

item.Value2 = new Random((int)DateTime.Now.Ticks).Next(100);                

item.Value3 = new Random((int)DateTime.Now.Ticks).Next(100);                

item.Label = string.Format("MYDATA {0}", i);                

 _data.Add(item);            

}

 

List<NSObject> valueList = new List<NSObject>                

{                    

new NSString("Value1"),                    

new NSString("Value2"),                    

new NSString("Value3")                

};

 

IGStackedSeriesDataSourceHelper stackedChartDataSourceHelper = new IGStackedSeriesDataSourceHelper(_data.ToArray(), valueList.ToArray());

stackedChartDataSourceHelper.LabelPath = "Label";            

StandardChart.AddStackedSeries(new Class(typeof(IGStackedColumnSeries)), "series", stackedChartDataSourceHelper, "xAxis", "yAxis");            

StandardChart.Frame = new RectangleF(0, 0, 500 - legendWidth, 300);

View.Frame = new RectangleF(0, 0, 500, 300);            

 (this.View).AddSubview(StandardChart);

IGLegend legend = new IGLegend(IGChartLegendType.IGChartLegendTypeSeries);            

legend.Frame = new RectangleF(500 - legendWidth, 0, legendWidth, 300);            

legend.BackgroundColor = UIColor.White;

legend.Orientation = IGOrientation.IGOrientationVertical;            

legend.VerticalAlignment = IGVerticalAlign.IGVerticalAlignCenter;            

StandardChart.Legend = legend;            

(this.View).AddSubview(legend);