AlphanumericValidationController constructor
AlphanumericValidationController({})
Implementation
AlphanumericValidationController(
{String message = 'Invalid alphanumeric', bool required = false})
: super(
message: message,
isValid: ({controller}) {
String? textValue = controller?.rawValue?.toString();
if (!required && TextUtils.isEmpty(textValue)) return true;
return Validators.isAlphanumeric(textValue!);
});