validation for text field

Question

hi, 
 i use 22.3 version 
 i have an condition in text field 
 in that i want only alphabetical character (A-Z) not numerical or special character 
 how to do that

Harshit Bumb (Appyzie) · Answer

If you do not want to add a dependency on the plugin, then you can use this code. if( and( a!forEach( items: code(ri!name), expression: or( and(fv!item >= 65, fv!item <= 90), and(fv!item >= 97, fv!item <= 122) ) ) ), {}, "Cannot contain numbers or special characters" )

Ramnadh Srikanth Vemakoti · Answer

you can try this. 
 
 if( contains( cast( runtimetypeof(ri!input), stripwith( cleanwith( ri!input, joinarray( { "abcdefghijklmnopqrstuvwxyz", "ABCDEFGHIJKLMNOPQRSTUVWXYZ" } ) ), " " ) ), ri!input ), "", "Please use alphabetical characters only." )

Harshit Bumb (Appyzie) · Answer

Simplified it a bit. if(
 a!isNotNullOrEmpty(
 stripwith(
 ri!name,
 lower("ABCDEFGHIJKLMNOPQRSTUVZXYZ") & "ABCDEFGHIJKLMNOPQRSTUVZXYZ"
 )
 ),
 "Can only contain alphabets",
 {}
)