Formula Error - Invalid Y value index

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Hello,

I want to apply a Financial Formula, but I receive this error if I specify a specific Y value to use for an input value. I really don't understand why...

This is my (sample) code:

VB

Chart mychart = new Chart();

Series sInput = new Series("sInput");
Series sOut = new Series("sOut");

mychart.Series.Add(sInput);
mychart.Series.Add(sOut);

DataPoint dp = new DataPoint(1, new double[] { 5, 7, 3 });
sInput.Points.Add(dp);

dp = new DataPoint(2, new double[] { 3, 4, 1 });
sInput.Points.Add(dp);

dp = new DataPoint(3, new double[] { 5, 10, 1 });
sInput.Points.Add(dp);

dp = new DataPoint(4, new double[] { 8, 9, 8 });
sInput.Points.Add(dp);

dp = new DataPoint(5, new double[] { 15, 16, 14 });
sInput.Points.Add(dp);

mychart.DataManipulator.FinancialFormula(FinancialFormula.MovingAverage, "3", "sInput:Y2", "sOut");

This is the error I receive:

"System.ArgumentException {"Formula Error - Invalid Y value index.\r\nNome parametro: Y2"}"

P.S.: If I'd use the first Y Value my program works well ("sInput:Y" instead of "sInput:Y2")

Thanks in advance. I am waiting for the help please.

Regards,
Ghanzanfar Latif

[edit]code blocks added[/edit]

Posted 20-Dec-12 13:31pm

ghazanfar_384

Updated 22-Dec-12 12:59pm

Nelek

v4

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Nelek 22-Dec-12 19:01pm

Where are you declaring, giving values or whatever you do with Y2 and Y? The code you have posted bring no information about them. And those are the key of the problem.

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Are Jay · Accepted Answer · 2012-12-23T19:21:00

C#

// ChartType Default value <-- fails with sInput:Y2
sInput.ChartType = SeriesChartType.Column;

// ChartType with a single Y axis <-- fails with sInput:Y2
sInput.ChartType = SeriesChartType.Line;

// ChartType that has a Y and Y2 axis <-- passes with sInput:Y2
sInput.ChartType = SeriesChartType.Range;

http://msdn.microsoft.com/en-us/library/system.web.ui.datavisualization.charting.series.charttype.aspx[^]

I wasn't able to find much of a description of the differences between Chart Types but I only looked for a few minutes; I hope this helps you down the correct path.