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Screen position of a datapoint in winform
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This is a migrated thread and some comments may be shown as answers.
rk
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rk asked on 11 Jun 2020, 03:18 PM
Hi, I need to get screen display position of a scatterseries datapoint say (3,5) in windows form. I am unable to find any conversion api similar to wpf which has methods to do that. How to get actual position on screen for a point. Any help will be greatly appreciated.

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Nadya
Telerik team
answered on 12 Jun 2020, 11:00 AM

Hello,

You can get screen coordinates of the ScatterDataPoint by using the HitTest method:

 private void RadChartView1_MouseMove(object sender, MouseEventArgs e)
 {
     var point = this.radChartView1.Area.View.Renderer.HitTest(e.X, e.Y);

     if (point is ScatterDataPoint)
     {
         Console.WriteLine("Coordinates: X: {0}, Y: {1} ", e.X, e.Y);
     }
 }

I hope this helps. If you have further questions do not hesitate to contact me.

Regards,
Nadya
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rk
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answered on 15 Jun 2020, 06:40 AM
Hi, My requirement is not on mouse  events. I want these locations just as these points are created very first time.So which event to use for that purpose is my problem.
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rk
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answered on 15 Jun 2020, 06:41 AM
Hi, My requirement is not on mouse  events. I want these locations just as these points are created very first time.So which event to use for that purpose is my problem.
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Nadya
Telerik team
answered on 17 Jun 2020, 02:45 PM

Hello,

You can use the CreatePointElement event that occurs when a DataPointElement is created. You can get the data point location and convert it to screen coordinates with the PointToScreen method. Please refer to the following code snippet:

private void ChartElement_CreatePointElement(object sender, ChartViewCreatePointElementEventArgs e)
{
    ScatterDataPoint point = e.DataPoint as ScatterDataPoint;
    RadPoint location = point.LayoutSlot.Location;
    Point pointScreen = radChartView1.PointToClient(new Point((int)location.X, (int)location.Y));
    Console.WriteLine(pointScreen);
}

I hope this helps. Let me know if you have other questions.

Regards,
Nadya
Progress Telerik

Progress is here for your business, like always. Read more about the measures we are taking to ensure business continuity and help fight the COVID-19 pandemic.
Our thoughts here at Progress are with those affected by the outbreak.
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Nadya
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