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TextEditingController lastNameController = TextEditingController();
TextEditingController firstNameController = TextEditingController();
TextEditingController birthdayController = TextEditingController();
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TextEditingController controller = TextEditingController();
String initialValue = 'Initial Value';
@override
void initState() {
super.initState();
controller.text = initialValue;
}
@override
Widget build(BuildContext context) {
return TextFormField(
controller: controller,
// other properties
);
}