Question

.net 4 vs2010 winform c#

added some points using

chart1.Series[0].Points.AddXY(x,y);

then zoom the x axis using

chart1.ChartAreas[0].AxisX.ScaleView.Zoom(a,b);

Are the any methods to return all the points on the screen (b> point.Xvalue >a)

Thank you!

Answer 1

By using LINQ, you can do the following:

DataPointCollection points = chart1.Series[0].Points;
IEnumerable<DataPoint> range =
    from p in points
    where p.XValue > a && p.XValue < b
    select p;

range contain all data points whose XValue is greater than a and less than b.