Show if no data

I have a Pay button which should be shown if T_payments has no results. Can‘t I use the opposite or like „!=„ ? of course I can change code directly. But prefer to go via wappler

I saw the expression: HasItems but not the opposite? Now I do a workaround and the opposite with my button. Payment button is loaded per default. Then hide the payment button IT HAS results. The effect is now, that even when paid in DB my button will be shown for 0.5 seconds .