updateError method
Updates the error
field for the FormFieldState.
This method is used to explicitly set or clear the error message associated with the form field. It accepts a nullable string, allowing you to either set an error message or clear any existing message.
error
The new error message string. Pass null
to clear any existing error.
Returns a new FormFieldState object with an updated error field.
Implementation
@override
DropDownFieldState<T> updateError(String? error) {
return DropDownFieldState<T>(
value,
items: items,
label: label,
rules: rules,
error: error,
);
}