Tung

How to addPlotBand when select a column bar?

2

I modified the demo project like this but doesn't work. Can anybody help me please? Thank you! 

How to set tooltip position on the top of each bar column range

2

Hey guys, i want to know how to set tooltip position on the top of each bar column range? Please help me, thank you!!

I modified the demo project like this but doesn't work. Can anybody help me please? Thank you! 

I want to know how to set background color of crosshair like this. Anybody can help me please. Thank you so much