> For the complete documentation index, see [llms.txt](https://docs.opencityitalia.it/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.opencityitalia.it/stanza-del-cittadino/guida-alla-creazione-dei-servizi-digitali/creare-un-servizio/i-componenti/il-number.md).

# Il Number

Il componente "Number" serve per inserire un campo numerico nel form, dove il cittadino può digitare solo valori numerici, per esempio un importo, una quantità o un numero di persone. A differenza del Textfield, valida automaticamente il formato e impedisce l'inserimento di caratteri non numerici.

<figure><img src="https://4252442743-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrdV0mwA7iy2c3I7wu5BX%2Fuploads%2F4ozn7DRJ1t1eDVzSrWEf%2Fimage.png?alt=media&amp;token=84668127-a804-4899-9212-7ad1a438f13b" alt=""><figcaption></figcaption></figure>

Quando aggiungi un Number, puoi personalizzare vari aspetti, come:

* l'obbligatorietà del campo;
* il valore minimo e massimo ammesso, configurabile nella sezione "Validation" alle voci "Minimum Value" e "Maximum Value";
* il numero di cifre decimali ammesse, configurabile nella sezione "Display" alla voce "Decimal Places".

{% hint style="info" %}
Il componente può essere utilizzato anche per la configurazione dei *conditional* e popolato via API.
{% endhint %}


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