How can I make a limit to the 'integer' data type (e.g. 01 to 99)?

User Support Form Building
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Welcome back to the community, @tanzilhuda! Try using this constraint and it should work …

regex(., '^(0[1-9]|[1-3][0-9]|4[0-8])$')

survey sheet:

image
image937×120 6.3 KB

Updated XLSForm:

Regex_Constraint.xlsx (10.1 KB)