textControl method
Returns a FormControl specialized for text input with the given name
.
Throws if the control does not exist or is not a text control.
Implementation
FormControl<TextEditingValue, String> textControl(String name) {
final ctrl = controls[name];
if (ctrl == null) throw Exception('FormControl "$name" não encontrado');
if (ctrl is FormGroup) {
throw Exception(
'O controle "$name" é um FormGroup, use group() para acessá-lo.');
}
return ctrl as FormControl<TextEditingValue, String>;
}