The File Input component for classic apps

An input field to select single or multiple files.

Classic apps

You're viewing documentation for classic apps, which use Retool's original app editor. The new app builder is the recommended way to build apps and where Retool focuses new development.

Refer to the File inputs guide for more information on how to use this component.

Demo

Properties

All properties for this object with supported data types or values. You can write JavaScript almost anywhere in Retool to manipulate or read property values.

accept

A list of file extensions or file-type specifiers to accept.

Type	array
Array values	string
Configurability	Inspector > content > File types
Default	null

Examples

false["image/*", "pdf", "doc"]

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appendNewSelection

Whether to append additional files to the value.

Type	boolean
Configurability	Inspector
Default	null

---

disabled

Whether input, interaction, selection, or triggering is disabled.

Type	boolean
Format	True/False
Configurability	Inspector > Interaction > Disabled
Default	false

Examples

falsetrue

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events

A list of configured event handlers that trigger actions or queries.

Type	array
Array values	object
Configurability	Inspector > Interaction > Event handlers
Default	null

Array Object Properties

event

The event that triggers the action. Refer to the events section for details of available events for this object.

Type	string
Configurability	Inspector > Interaction > Event handlers > Event
Default	null

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method

The JavaScript method to perform when type is datasource, widget, state, or localStorage.

Type	string
Configurability	Inspector > Interaction > Event handlers > Edit event handler > Run script actions
Default	null

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type

The type of action to perform.

Type	string
Configurability	Inspector > Interaction > Event handlers > Edit event handler > Action
Allowed Values	Value Description datasource Control query. widget Control component. script Run script. state Set variable. localStorage Set localStorage. util Perform utility action (e.g., Open URL or Confetti).
Default	null

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files

A list of metadata from the selected files.

Type	array
Array values	object
Configurability	Read-only
Default	null

Array Object Properties

lastModified

The last modified date as a timestamp.

Type	number
Format	Timestamp
Configurability	Read-only
Default	null

Examples

false1617024000000

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name

The file name with extension.

Type	string
Configurability	Read-only
Default	null

---

retoolStorageId

The file ID if uploaded to Retool Storage.

Type	string
Configurability	Read-only
Default	null

---

size

The file size, in bytes.

Type	string
Configurability	Read-only
Default	null

---

type

The MIME type.

Type	string
Configurability	Read-only
Default	null

---

uploading

Whether the file is uploading.

Type	boolean
Configurability	Read-only
Default	null

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---

iconAfter

The suffix icon to display.

Type	string
Format	Icon Key
Configurability	Inspector > Content > Add-ons > Suffix icon
Default	null

Examples

false/icon:bold/shopping-gift

---

iconBefore

The prefix icon to display.

Type	string
Format	Icon Key
Configurability	Inspector > Content > Add-ons > Prefix icon
Default	null

Examples

false/icon:bold/shopping-gift

---

isPublic

Whether to make the file public when uploading with Retool Storage.

Type	boolean
Configurability	Inspector
Default	null

---

labelPosition

The position of the label relative to the input field or value.

Type	string
Format	Plain Text
Configurability	Inspector > Content > Add-ons > Label > Position
Allowed Values	Value UI Option Description top Top Above the input field or value. left Left Left of the input field or value.
Default	left

Examples

falsetop

---

loading

Whether to display a loading indicator.

Type	boolean
Format	True/False
Configurability	Inspector > Interaction > Loading
Default	false

Examples

falsetrue

---

maxCount

The maximum number of items to allow.

Type	number
Configurability	Inspector
Default	null

---

maxSize

The maximum file size allowed.

Type	number
Configurability	Inspector
Default	null

---

minCount

The minimum number of items to allow.

Type	number
Configurability	Inspector
Default	null

---

minSize

The minimum file size allowed.

Type	number
Configurability	Inspector
Default	null

---

parsedValue

The parsed value of the input.

Type	array
Array values	string
Configurability	Read-only
Default	null

---

parseFiles

Whether to parse plain-text content.

Type	boolean
Configurability	Inspector
Default	null

---

parsing

Whether content is being parsed.

Type	boolean
Configurability	Read-only
Default	null

---

placeholder

The text to display within the input field when there is no value.

Type	string
Format	string
Configurability	Inspector > Content > Placeholder
Default	Enter a value

Examples

falseEnter a value

---

selectionType

The type of file selection.

Type	string
Configurability	Inspector
Allowed Values	Value Description single Select a single file. multiple Select multiple files. directory Select a directory of files.
Default	null

---

shouldOverwriteOnNameCollision

Whether to replace a file with the same name when uploading with Retool Storage.

Type	boolean
Configurability	Inspector
Default	null

---

showClear

Whether to display a button to clear the value of the input field.

Type	boolean
Format	True/False
Configurability	Inspector > Appearance > Show clear button
Default	false

Examples

falsetrue

---

style

Custom style options.

Type	object
Configurability	Inspector > Appearance > style
Default	null

---

textAfter

The suffix text to display.

Type	string
Format	Plain Text
Configurability	Inspector > Content > Add-ons > Suffix text
Default	null

Examples

falseUSD

falsepx

false@example.com

---

textBefore

The prefix text to display.

Type	string
Format	Plain Text
Configurability	Inspector > Content > Add-ons > Prefix text
Default	null

Examples

false$

falseEmail address

falseSKU

---

uploadToRetoolStorage

Whether to upload a file to Retool Storage.

Type	boolean
Configurability	Inspector
Default	null

---

value

A list of uploaded files.

Type	array
Configurability	Read-only
Default	null

---

Methods

JavaScript API methods for this object. You can write JavaScript almost anywhere in Retool and use methods to manipulate data and property values.

fileInput.clearValidation()

Clear the validation message from the input field.

Definition

fileInput.clearValidation()

Examples

Clear the validation message from fileInput.

fileInput.clearValidation();

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fileInput.clearValue()

Clear the current values.

Definition

fileInput.clearValue()

Examples

Clear the current value of fileInput.

fileInput.clearValue();

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fileInput.focus()

Set focus on the component.

Definition

fileInput.focus()

Examples

Set focus on fileInput.

fileInput.focus();

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fileInput.resetValue()

Reset the current value to the default value.

Definition

fileInput.resetValue()

Examples

Reset the current value of fileInput.

fileInput.resetValue();

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fileInput.scrollIntoView()

Scrolls the canvas or parent container so that the selected component appears in the visible area.

Definition

fileInput.scrollIntoView(options)

Parameters

options

The scroll options.

Type

object

Object Properties

behavior

The scroll behavior.

Type	string
Allowed Values	Value Description auto Scroll immediately to the specified position. smooth Scroll gradually to the specified position.

---

block

The scroll position relative to the component.

Type	string
Allowed Values	Value Description nearest Scrolls only the minimum amount required for the component to appear in the visible area. Scrolling does not occur if the component is already in view. start Scrolls to position the component at the top of the visible area. center Scrolls to position the component in the middle of the visible area. end Scrolls to position the component at the bottom of the visible area.

---

---

Examples

Scroll the minimum amount to immediately bring fileInput into view.

fileInput.scrollIntoView({behavior: 'auto', block: 'nearest'});

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fileInput.setDisabled()

Set the disabled value to toggle whether the input field is disabled. Defaults to true without a parameter.

Definition

fileInput.setDisabled(disabled)

Parameters

disabled

Whether input, interaction, selection, or triggering is disabled.

Type	boolean
Format	True/False
Default	false

Examples

true

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Examples

Disable fileInput.

fileInput.setDisabled(true);

Enable fileInput.

fileInput.setDisabled(false);

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fileInput.setHidden()

Set the hidden value to toggle whether the component is visible. Defaults to true without a parameter.

Definition

fileInput.setHidden(hidden)

Parameters

hidden

Whether this object is hidden from view.

Type	boolean
Format	True/False
Default	false

Examples

true

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Examples

Hide fileInput.

fileInput.setHidden(true);

Unhide fileInput.

fileInput.setHidden(false);

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Events

Events triggered by user interactions. You can configure event handlers in the IDE to trigger queries or other actions in response to events.

Event	Description
Change	The value is changed.
Parse	Data is parsed.