How to use the InvalidateCrosshair method in CoreAxis.cs?

[Eekkow]

I'm currently working with a charting library and came across the InvalidateCrosshair method in the CoreAxis class. The method signature is as follows:

I understand that this method is used to update the crosshair on a chart, but I'm not sure how to use it correctly. Could someone provide an example of how to call this method and explain what the chart and pointerPosition parameters represent? Any help would be appreciated.

[beto-rodriguez]

Hello

This method is called internally when the pointer moves over the chart, it just updates the crosshair position:

You can call it if you require to update the crosshair.

[Eekkow]

Hello, thanks for your response. I have another question: when we update or redraw the x-axis, the labels change, but the label on the crosshair does not. Is this a bug, or is it the intended behavior?

For instance, if the x-axis labels are initially 1, 2, 3, 4, 5, 6, 7, 8, 9, and the crosshair label shows '4,' when we change the data on the page, the x-axis labels are updated to 'Jan, Feb, March, April,' etc. However, the crosshair label still shows '4,' when we would expect it to update to match the new x-axis labels, such as 'April.' How can we ensure the crosshair label updates along with the x-axis labels?"