Get x/y value at y/x point?

Question

If I create a simple line chart, like this.

ChartSeries series = new ChartSeries("Series 1");
series.Points.Add(0, 500);
series.Points.Add(1,340);
series.Points.Add(3,440);
series.Type = ChartSeriesType.Line;

Are there any way for me to get the y-value at x = 2?

Maybe something like: chartControl1.Series(0).GetYValue(2); ?

Venkata Vijayaraj B · Answer

Hi Markus,Thanks for your interest in Syncfusion products.Use the below code to get Y - Value at X = 2.Dim y() As Double= chartControl1.Series(0).Summary.ModelImpl.GetY(2)y(0) - 1st Y Value. y(1) - 2nd Y Value.Please let me know if this helps.Regards,Venkat.

Markus Persson · Answer

This doesn't seems to help me.I have this serie in my example:Me.ChartControl1.Series(0).Points.Add(-20, 20)Me.ChartControl1.Series(0).Points.Add(0, 15)Me.ChartControl1.Series(0).Points.Add(20, 15)And when I try:Me.ChartControl1.Series(0).Summary.ModelImpl.GetY(18)I get an error "Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index"Expected output that I want is "15". (At x = 18, y is 15)

Venkata Vijayaraj B · Answer

Hi Markus,Sorry for the inconvenience caused. We don't have direct support to identify the particular Y value for particular X value which are not included to Series. It is possible to achieve through one workaround, I have attached a simple sample for your reference. You can modify the 'FindIntersectingPoint' method depend on your requirement to find the specific value.Sample Link:http://files.syncfusion.com/support/Chart.Windows/v7.3.0.20/F89938/F89938Sample/main.htmPlease let me know if this helps.Regards,Venkat.

Palak Jain · Answer

I need to do the same thing. Get the value of Y at X.But I cannot access the sample code provided in the previous post.

Venkata Vijayaraj B · Answer

Hi Palak,Sorry for the inconvenience caused.Here is the updated link. http://files.syncfusion.com/support/Chart.Windows/v7.3.0.20/F89938_New/F89938Sample/main.htmPlease let us know if this helps.Regards,Venkat.

Palak Jain · Answer

I still can't open the link. I get the Page Not Found error.Palak

Venkata Vijayaraj B · Answer

Hi Palak,Sorry for the inconvenience caused.Kindly download the sample from the following link below.http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=F89938_Sample-1139976731.zipRegards,Venkat.

Venkata Vijayaraj B · Answer

Hi Palak,Sorry for the inconvenience caused.Kindly download the sample from the following link.http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=F89938_Sample-1139976731.zipRegards,Venkat.