---
title: "file type · RUAL Documentation"
description: "RUAL field validation block."
canonical: https://docs.rual.nl/block-types/field%20validation/fieldvalidation_filetype
language: en
---

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# file type

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

## Parent Requirements

This block requires specific parent elements: `component_custom_input_file`, `component_input_file`. Ensure this block is placed within the appropriate parent context.

- fieldvalidation `fieldvalidation`

A typical wiring for [file type](https://docs.rual.nl/block-types/field%2520validation/fieldvalidation_filetype): the `fieldvalidation` out pin feeds [radio](https://docs.rual.nl/block-types/Component%2520UI/component_radio).

[![Studio canvas example for the file type block: typical wiring for file type.](https://docs.rual.nl/canvas-examples/fieldvalidation_filetype.png)](https://docs.rual.nl/canvas-examples/fieldvalidation_filetype.png?v=3)

## Version history

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

- [Back to `field validation`](https://docs.rual.nl/block-types/field%20validation): Return to the main group to view all sub-groups

- [Back to `validation`](https://docs.rual.nl/block-types/field%20validation?group=validation): Return to the group to view all blocks within this group

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