if textbox1 text updated then copy text to textbox7 if textbox2 text updated then count txb1 + txb2 = txb7 if txb 3 text updated then count txb1 + txb2 + txb3 = txb7 ect..... hooooooooooooooowwwwwwwwwwwwwwwwwww????????

For nowyou could use @Taifun 's TextBox extension and use Enter Pressed Listener or Set Icon for Enter button on soft keyboard for a textbox. In that way when enter pressed or Done create a procedure to display subtotal

How do I to count without button

MIT App Inventor Help

Anke November 22, 2021, 5:46am 4

Show us what you've tried so far.
What exactly is the goal? Give us some examples.

And read this first: