Winform (C #) in Chart control mouse click on the corresponding point corresponding to the waveform display coordinate axis x, y values

Method One: mouse click waveform

Waveform mouse click, click the display position x, y values

private void chart1_MouseClick (object sender, MouseEventArgs e) // chart1 is you build the chart controls, real name according to your own code named
        {            
            HitTestResult HIT = chart1.HitTest (eX, eY);
            IF (hit.Series = null! )
            {
                var = hit.Series.Points the xValue [hit.PointIndex] .XValue;
                var = yValue hit.Series.Points [hit.PointIndex] .YValues.First ();
                textBox1.Text = string.Format ( "{0: F0}, {1: F0} "," x: "+ xValue," y: "+ yValue); // textbox1 is one designed to build their own content display frame, pop-up may be directly used content messagebox
            }
            the else
            {
                textBox1.Text = "not click the waveform curve";
            }
        }

 

Call the method:

chart1.MouseClick += new MouseEventHandler(chart1_MouseClick);

 

Method two: the mouse to move to the corresponding point correlation value is automatically displayed

private void chart1_MouseMove(object sender, MouseEventArgs e)
        {
            var area = chart1.ChartAreas[0];

            double xValue = area.AxisX.PixelPositionToValue(e.X);
            double yValue = area.AxisY.PixelPositionToValue(e.Y);
            textBox1.Text = string.Format("{0:F0},{1:F0}", xValue, yValue);
        }

Call the method:

chart1.MouseMove += new MouseEventHandler(chart1_MouseMove);