Fyne API "validation"
validation
import "fyne.io/fyne/v2/data/validation"
Package validation provides validation for data inside widgets
Usage
func NewRegexp
func NewRegexp(regexpstr, reason string) fyne.StringValidator
NewRegexp creates a new validator that uses regular expression parsing. The validator will return nil if valid, otherwise returns an error with a reason text.
Since:
1.4