ChartControl.CalcHitInfo(Point, Boolean) Method
Returns information on the chart elements located at the specified point.
public ChartHitInfo CalcHitInfo( Point point, bool forceUpdate = true )
Public Function CalcHitInfo( point As Point, forceUpdate As Boolean = True ) As ChartHitInfo
The hit point, relative to the chart’s top-left edge integer screen coordinates.
The value that specifies that all update commands that the Chart currently collects should be executed immediately instead of before the control ‘s next rendering.
The information about the item in the test point.
Use the CalcHitInfo method to determine which element is located at the point with the specified coordinates. For example, you can use this method in the chart’s Click event handler to determine clicked element. In this case, pass the current mouse pointer’s coordinates as the method’s parameter.
Make sure that the ChartControl.RuntimeHitTesting property is set to true to enable hit testing at runtime.