How should I implement this?

MIT App Inventor Help
1

I want to create a login page. but I don't want the user to be able to enter any other character except English alphabets, numbers, periods(.) or underscores(_). How should i implement this?? I have tried using word list but could find a way to implement it. Please help me...

Thanks.. good day...

2

i think you can use this method :
https://community.appinventor.mit.edu/t/bagaimana-cara-agar-angka-0-pada-keyboard-tidak-masuk-ke-textbox/21592/12?u=salman_dev

1 Like
3

Thanks. But in this case I have to remove each character manually. Its just that there are so many other characters outside English alphabets, for example, ASCII characters. It is not possible to do it manually. Is there any other way. Please do say....

Anyways... Thanks...

4

Use Taifun's Textbox extension and a list

blocks (3)
blocks (3)897×721 88.3 KB

2 Likes
5

Ok Thank you so much... I'll try it