---
title: "class · RUAL Documentation"
description: "Overwrites class for given fields"
canonical: https://docs.rual.nl/block-types/state ui/stateformfieldconnection_class
language: en
---

# class

This block is part of the [`state ui`](https://docs.rual.nl/block-types/state%20ui) group and was last modified in core [`v10.4.28`](https://docs.rual.nl/core-versions/100428).

### Fields Selection Required

This block relies on fields that you selected to perform its data actions. You must manually select the fields you want to use in your flow using the fields selector modal. To access the modal, click the white button on the block.

### Field Selection Required

This block requires field selection (in). You must manually select the fields you want to work with using the field selector modal. To access the modal, click the white button on the block.

### Connection Type

This block connects from a `stateformfieldconnection` type block. Make sure to connect this block to the appropriate left-hand side connection.

Overwrites class for given fields

- stateformfieldconnection `stateformfieldconnection`

A typical wiring for [class](https://docs.rual.nl/block-types/state%20ui/stateformfieldconnection_class): the `stateformfieldconnection` out pin feeds [form rows from fields](https://docs.rual.nl/block-types/state%20ui/state_form_fields).

![Studio canvas example for the class block: typical wiring for class.](https://docs.rual.nl/canvas-examples/stateformfieldconnection_class.png)

### Version history

Introduced in [`v10.4.28`](https://docs.rual.nl/core-versions/100428).