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.

Note: The property is updatable, but the default value corresponds to the domain on which the variable / attribute / SDT member is based on.


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

See Also

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