Regular Expression property

Official Content
This documentation is valid for:
Specifies a regular expression for string-type attributes or variables, or for SDT members (Character, VarChar, etc.) with which to validate the data entered.


Level: Attribute, Domain, SDT member, Variable


Verification is done at runtime when the value is entered in a Web object by an end user, or with a Business Component by a program.

This property is not available when the attribute is a formula.

For domains, attributes, variables, or SDT members based on domains, the property is inherited and can't be modified.


Since GeneXus 17 Upgrade 4, this property also applies to SDT members.

See Also

Value range property
Validation Failed Message property
Regular Expressions (RegEx)