SimonB

Thanks JuanZ. Humm no, because I really need to have my values in double instead of in string but I found another to fix my issue. I used to different XArray allArrays[0] = Serie1 allArrays[1] = XArray1;allArrays[2] = Serie2 allArrays[3] = XArray2;

Is it possible to have two series with a different number of points. My two series have the same X,Y axis but they have not the same number of points. The two axis are Double. My series are defined as line so, do I need to add "average dummy points" to have 2 points for each X value? Example : Serie 1 (3 points) : (0,0), (1,1), (2,2) Serie 2 (4 points) : (0,0), (1,2), (1,3), (3,3) Here is what I'm used to do : allArrays[0] = serie1; allArrays[1] = serie2; allArrays[2] = XArray; base.DataSourceSettings.Fields.Add(new FieldMap("Field1", FieldUsage.Value)); base.DataSourceSettings.Fields.Add(new FieldMap("Field2", FieldUsage.Value)); base.DataSourceSettings.Fields.Add(new FieldMap("Field3", FieldUsage.XValue)); Thanks Simon