ion-textarea

scoped

The textarea component is used for multi-line text input. A native textarea element is rendered inside of the component. The user experience and interactivity of the textarea component is improved by having control over the native textarea.

Unlike the native textarea element, the Ionic textarea does not support loading its value from the inner content. The textarea value should be set in the value attribute.

The textarea component accepts the native textarea attributes in addition to the Ionic properties.

Basic Usage

Label Placement

Labels will take up the width of their content by default. Developers can use the labelPlacement property to control how the label is placed relative to the control.

Filled Textareas

Material Design offers filled styles for a textarea. The fill property on the item can be set to either "solid" or "outline".

Since the fill styles visually defines the textarea container, textareas that use fill should not be used in ion-item.

Helper & Error Text

Helper and error text can be used inside of a textarea with the helperText and errorText property. The error text will not be displayed unless the ion-invalid class is added to the ion-textarea. In Angular, this is done automatically through form validation. In JavaScript, React and Vue, the class needs to be manually added based on your own validation.

Textarea Counter

The textarea counter is text that displays under a textarea to notify the user of how many characters have been entered out of the total that the textarea will accept. When adding counter, the default behavior is to format the value that gets displayed as inputLength / maxLength. This behavior can be customized by passing in a formatter function to the counterFormatter property.

Autogrow

When the autoGrow property is set to true, the textarea will grow and shrink based on its contents.

Clear on Edit

Setting the clearOnEdit property to true will clear the textarea after it has been blurred and then typed in again.

Migrating from Legacy Textarea Syntax

A simpler textarea syntax was introduced in Ionic 7.0. This new syntax reduces the boilerplate required to setup an textarea, resolves accessibility issues, and improves the developer experience.

Developers can perform this migration one textarea at a time. While developers can continue using the legacy syntax, we recommend migrating as soon as possible.

Using the Modern Syntax

Using the modern syntax involves three steps:

1. Remove ion-label and use the label property on ion-textarea instead. The placement of the label can be configured using the labelPlacement property on ion-textarea.
2. Move textarea-specific properties from ion-item on to ion-textarea. This includes the counter, counterFormatter, fill, and shape properties.
3. Remove usages of the helper and error slots on ion-item and use the helperText and errorText properties on ion-textarea instead.

JavaScript

<!-- Label and Label Position -->

<!-- Before -->
<ion-item>
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea></ion-textarea>
</ion-item>

<!-- After -->
<ion-item>
  <ion-textarea label="Label:" label-placement="floating"></ion-textarea>
</ion-item>


<!-- Fill -->

<!-- Before -->
<ion-item fill="outline" shape="round">
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea></ion-textarea>
</ion-item>

<!-- After -->

<!-- Textareas using `fill` should not be placed in ion-item -->
<ion-textarea fill="outline" shape="round" label="Label:" label-placement="floating"></ion-textarea>

<!-- Textarea-specific features on ion-item -->

<!-- Before -->
<ion-item counter="true">
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea maxlength="100"></ion-textarea>
  <div slot="helper">Enter text</div>
  <div slot="error">Please enter text</div>
</ion-item>

<!-- After -->
<ion-item>
  <ion-textarea
    label="Label:"
    counter="true"
    maxlength="100"
    helper-text="Enter text"
    error-text="Please enter text"
  ></ion-textarea>
</ion-item>

Angular

<!-- Label and Label Position -->

<!-- Before -->
<ion-item>
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea></ion-textarea>
</ion-item>

<!-- After -->
<ion-item>
  <ion-textarea label="Label:" labelPlacement="floating"></ion-textarea>
</ion-item>


<!-- Fill -->

<!-- Before -->
<ion-item fill="outline" shape="round">
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea></ion-textarea>
</ion-item>

<!-- After -->

<!-- Textareas using `fill` should not be placed in ion-item -->
<ion-textarea fill="outline" shape="round" label="Label:" labelPlacement="floating"></ion-textarea>

<!-- Textarea-specific features on ion-item -->

<!-- Before -->
<ion-item [counter]="true">
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea maxlength="100"></ion-textarea>
  <div slot="helper">Enter text</div>
  <div slot="error">Please enter text</div>
</ion-item>

<!-- After -->
<ion-item>
  <ion-textarea
    label="Label:"
    [counter]="true"
    maxlength="100"
    helperText="Enter text"
    errorText="Please enter text"
  ></ion-textarea>
</ion-item>

React

{/* Label and Label Position */}

{/* Before */}
<IonItem>
  <IonLabel position="floating">Label:</IonLabel>
  <IonTextarea></IonTextarea>
</IonItem>

{/* After */}
<IonItem>
  <IonTextarea label="Label:" labelPlacement="floating"></IonTextarea>
</IonItem>


{/* Fill */}

{/* Before */}
<IonItem fill="outline" shape="round">
  <IonLabel position="floating">Label:</IonLabel>
  <IonTextarea></IonTextarea>
</IonItem>

{/* After */}

{/* Textareas using `fill` should not be placed in IonItem */}
<IonTextarea fill="outline" shape="round" label="Label:" labelPlacement="floating"></IonTextarea>

{/* Textarea-specific features on IonItem */}

{/* Before */}
<IonItem counter={true}>
  <IonLabel position="floating">Label:</IonLabel>
  <IonTextarea maxlength="100"></IonTextarea>
  <div slot="helper">Enter text</div>
  <div slot="error">Please enter text</div>
</IonItem>

{/* After */}
<IonItem>
  <IonTextarea
    label="Label:"
    counter={true}
    maxlength="100"
    helperText="Enter text"
    errorText="Please enter text"
  ></IonTextarea>
</IonItem>

Vue

<!-- Label and Label Position -->

<!-- Before -->
<ion-item>
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea></ion-textarea>
</ion-item>

<!-- After -->
<ion-item>
  <ion-textarea label="Label:" label-placement="floating"></ion-textarea>
</ion-item>


<!-- Fill -->

<!-- Before -->
<ion-item fill="outline" shape="round">
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea></ion-textarea>
</ion-item>

<!-- After -->

<!-- Textareas using `fill` should not be placed in ion-item -->
<ion-textarea fill="outline" shape="round" label="Label:" label-placement="floating"></ion-textarea>

<!-- Textarea-specific features on ion-item -->

<!-- Before -->
<ion-item :counter="true">
  <ion-label position="floating">Label:</ion-label>
  <ion-textarea maxlength="100"></ion-textarea>
  <div slot="helper">Enter text</div>
  <div slot="error">Please enter text</div>
</ion-item>

<!-- After -->
<ion-item>
  <ion-textarea
    label="Label:"
    :counter="true"
    maxlength="100"
    helper-text="Enter text"
    error-text="Please enter text"
  ></ion-textarea>
</ion-item>

Using the Legacy Syntax

Ionic uses heuristics to detect if an app is using the modern textarea syntax. In some instances, it may be preferable to continue using the legacy syntax. Developers can set the legacy property on ion-textarea to true to force that instance of the textarea to use the legacy syntax.

Theming

Interfaces

TextareaChangeEventDetail

interface TextareaChangeEventDetail {
  value?: string | null;
}

TextareaCustomEvent

While not required, this interface can be used in place of the CustomEvent interface for stronger typing with Ionic events emitted from this component.

interface TextareaCustomEvent extends CustomEvent {
  detail: TextareaChangeEventDetail;
  target: HTMLIonTextareaElement;
}

Properties

autoGrow

Description	If true, the textarea container will grow and shrink based on the contents of the textarea.
Attribute	auto-grow
Type	boolean
Default	false

autocapitalize

Description	Indicates whether and how the text value should be automatically capitalized as it is entered/edited by the user. Available options: "off", "none", "on", "sentences", "words", "characters".
Attribute	autocapitalize
Type	string
Default	'none'

autofocus

Description	This Boolean attribute lets you specify that a form control should have input focus when the page loads.
Attribute	autofocus
Type	boolean
Default	false

clearOnEdit

Description	If true, the value will be cleared after focus upon edit. Defaults to true when type is "password", false for all other types.
Attribute	clear-on-edit
Type	boolean
Default	false

color

Description	The color to use from your application's color palette. Default options are: "primary", "secondary", "tertiary", "success", "warning", "danger", "light", "medium", and "dark". For more information on colors, see theming.
Attribute	color
Type	"danger" ｜ "dark" ｜ "light" ｜ "medium" ｜ "primary" ｜ "secondary" ｜ "success" ｜ "tertiary" ｜ "warning" ｜ string & Record<never, never> ｜ undefined
Default	undefined

cols

Description	The visible width of the text control, in average character widths. If it is specified, it must be a positive integer.
Attribute	cols
Type	number ｜ undefined
Default	undefined

debounce

Description	Set the amount of time, in milliseconds, to wait to trigger the ionChange event after each keystroke. This also impacts form bindings such as ngModel or v-model.
Attribute	debounce
Type	number
Default	0

disabled

Description	If true, the user cannot interact with the textarea.
Attribute	disabled
Type	boolean
Default	false

enterkeyhint

Description	A hint to the browser for which enter key to display. Possible values: "enter", "done", "go", "next", "previous", "search", and "send".
Attribute	enterkeyhint
Type	"done" ｜ "enter" ｜ "go" ｜ "next" ｜ "previous" ｜ "search" ｜ "send" ｜ undefined
Default	undefined

inputmode

Description	A hint to the browser for which keyboard to display. Possible values: "none", "text", "tel", "url", "email", "numeric", "decimal", and "search".
Attribute	inputmode
Type	"decimal" ｜ "email" ｜ "none" ｜ "numeric" ｜ "search" ｜ "tel" ｜ "text" ｜ "url" ｜ undefined
Default	undefined

maxlength

Description	If the value of the type attribute is text, email, search, password, tel, or url, this attribute specifies the maximum number of characters that the user can enter.
Attribute	maxlength
Type	number ｜ undefined
Default	undefined

minlength

Description	If the value of the type attribute is text, email, search, password, tel, or url, this attribute specifies the minimum number of characters that the user can enter.
Attribute	minlength
Type	number ｜ undefined
Default	undefined

mode

Description	The mode determines which platform styles to use.
Attribute	mode
Type	"ios" ｜ "md"
Default	undefined

name

Description	The name of the control, which is submitted with the form data.
Attribute	name
Type	string
Default	this.inputId

placeholder

Description	Instructional text that shows before the input has a value.
Attribute	placeholder
Type	string ｜ undefined
Default	undefined

readonly

Description	If true, the user cannot modify the value.
Attribute	readonly
Type	boolean
Default	false

required

Description	If true, the user must fill in a value before submitting a form.
Attribute	required
Type	boolean
Default	false

rows

Description	The number of visible text lines for the control.
Attribute	rows
Type	number ｜ undefined
Default	undefined

spellcheck

Description	If true, the element will have its spelling and grammar checked.
Attribute	spellcheck
Type	boolean
Default	false

value

Description	The value of the textarea.
Attribute	value
Type	null ｜ string ｜ undefined
Default	''

wrap

Description	Indicates how the control wraps text.
Attribute	wrap
Type	"hard" ｜ "off" ｜ "soft" ｜ undefined
Default	undefined

Events

Name	Description
ionBlur	Emitted when the input loses focus.
ionChange	Emitted when the input value has changed.
ionFocus	Emitted when the input has focus.
ionInput	Emitted when a keyboard input occurred.

Methods

getInputElement

Description	Returns the native <textarea> element used under the hood.
Signature	getInputElement() => Promise<HTMLTextAreaElement>

setFocus

Description	Sets focus on the native textarea in ion-textarea. Use this method instead of the global textarea.focus().
Signature	setFocus() => Promise<void>

CSS Shadow Parts

No CSS shadow parts available for this component.

CSS Custom Properties

Name	Description
--background	Background of the textarea
--border-radius	Border radius of the textarea
--color	Color of the text
--padding-bottom	Bottom padding of the textarea
--padding-end	Right padding if direction is left-to-right, and left padding if direction is right-to-left of the textarea
--padding-start	Left padding if direction is left-to-right, and right padding if direction is right-to-left of the textarea
--padding-top	Top padding of the textarea
--placeholder-color	Color of the placeholder text
--placeholder-font-style	Style of the placeholder text
--placeholder-font-weight	Weight of the placeholder text
--placeholder-opacity	Opacity of the placeholder text

Slots

No slots available for this component.