Hi everyone, I try to make Dual Display Sample in Retail mPOS.
What I have done:
- I ReDesign layout Dual Screen.
One side I show the Cart Line Item, another side I show Video.

What my issue:
- I want a hidden side cart line Item when no Item in the cart. I try: data-bind="attr: {hidden: ishidden}".

When I set ishidden = true, it ok, but set = false not effect.
After that, I try to use HTMLELEMENT to set and remove hidden attributes.
But it does not affect to HTML.