FormInterface add(

class FormView implements ArrayAccess,

class ChoiceView deprecated

string|null getParent() Returns the name of the parent type.

bool hasType(string $name) Returns whether the given form type is supported.

class FileType extends AbstractType

bool isEmpty() Returns whether the form is empty.

bool getDisabled() Returns whether the button is disabled.

FormTypeInterface getType(string $name)

interface FormConfigInterface The configuration of a {@link Form} object.