Gets the form field at the current text input position or the form field with the specified id.
<void> FormFieldCollection.getItem(<RequestFormFieldCallback> callback, [<ErrorCallback> errorCallback], [<number> id])| Parameter | Description |
|---|---|
| callback | The callback function that receives the requested value. |
| error |
Optional. Is called when the operation failed with an error. |
| id | Optional. Specifies the text field's identifier set with the ID property. The method returns null if a form field with the specified identifier does not exist. |