Hi Luca,
Greetings from Syncfusion. We have analyzed your query at our end, and we would like to let you know that when panning and zooming are performed in the chart, the crosshair which is activated will always get deactivated or disappears even when shouldAlwaysShow property is set as true and currently, this is the default behavior of our chart widget. However, we kindly request you to share us some competitors who handles this kind of behavior for crosshair so that it will be helpful for further analysis at our end in order to provide solutions sooner.
Regards,
Sriram Kiran.
