How can I require users for letters, numbers and characters in the texte box?
someone shows me please
What are you trying to achieve and what have you tried. Show some blocks.
3 Likes
I want to require the user to write like this
Yet you’re not clear enough! Help us understand elaborating your desired feature / design and failures.
Use regex
4 Likes
You got it?! Congrats! 
2 Likes
Pattern
[A-Z]{2}-[0-9]{6}
Example:
3 Likes
Ok,but after generate the code ,how can use it like block in kodular.
use the regex extension @Boban mentioned in his first answer
alternatively use the Matches method from the tools extension together with your regex
Taifun
2 Likes