Get Y value of series from the X Cursor position where a ChartArea is clicked on

Question

I would like to get the Y Value for a series corresponding to the X position of a ChartArea that the user has clicked-upon.

I have tried to capture the X position o

Answer 1

You'll need a MouseClick-Handler for your chart control instead of a normal Click-Handler, because of the "MouseEventArgs":

private void chart1_MouseClick(object sender, MouseEventArgs e)
{
    //check where you clicked, returns different information like the clicked series name and the index of the clicked point
    HitTestResult clicked = chart1.HitTest(e.X, e.Y);
    //this is how you get your y-Value
    double yValue = chart1.Series[clicked.Series.Name].Points[clicked.PointIndex].YValues[0];
}