Itemmapping with fields of two different data structure

[Angshuman]

I am trying to create a line chart, where the Itemmapping is done to two fields of a class and the RadControl.ItemSource is set to a List of objects of that class. The code is as follows:

SeriesMapping sm = new SeriesMapping();

            LineSeriesDefinition sd = new LineSeriesDefinition();

 

            sm.SeriesDefinition = sd;

 

            sm.ItemMappings.Add(new ItemMapping("Value",DataPointMember.YValue));

            sm.ItemMappings.Add(new ItemMapping("Time", DataPointMember.XValue));

            LineChart.SeriesMappings.Add(sm);

            LineChart.ItemsSource = GenerateLineData2(); // Returns a list of LineData objects ...


Here, the class that represents the data point looks as below

public class LineData

        {

            private double _time;

            private double _value;

            public double Time

            {

                get { return _time; }

                set { _time = value; }

            }           

            public double Value

            {

                get { return _value; }

                set { _value = value; }

            }

 

        }

The questions are
1. can I do ItemMapping if the fields 'Value' and 'Time' do not belong to the same class?
2. I have two lists of (say) double values, one for the 'Time' values and other for the 'Value' values; how can I perform the item mapping in that case?

[Evgeni "Zammy" Petrov]

Hello Angshuman,

 1. No, the data must come from the same object. You can of course wrap whatever business objects you have with a class and then use this class to expose the information to the chart.

2. You again need to wrap them in a class. 
Loop through Value and Time array and create a collection of LineData objects.

Regards,
Evgeni "Zammy" Petrov
the Telerik team