message method
The error message to be displayed if validation fails.
This message indicates that the field must be a file.
Implementation
@override
String message(dynamic value, [List<String>? options]) =>
'This field must be a file.';
The error message to be displayed if validation fails.
This message indicates that the field must be a file.
@override
String message(dynamic value, [List<String>? options]) =>
'This field must be a file.';