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Class Ext.form.TextArea

Package:Ext.form
Class:TextArea
Extends:TextField
Defined In:TextArea.js
Multiline text field. Can be used as a direct replacement for traditional textarea fields, plus adds support for auto-sizing.

Properties   -  Methods   -  Events   -  Config Options

Public Properties

Property Defined By
  disabled : Object Component
true if this component is disabled. Read-only.
  disabledClass : Object Component
CSS class added to the component when it is disabled.
  hidden : Object Component
true if this component is hidden. Read-only.
  rendered : Object Component
true if this component has been rendered. Read-only.

Public Methods

Method Defined By
  TextArea(Object config) TextArea
Creates a new TextArea
  addEvents(Object object) : void Observable
Copies any events from the passed object onto this object if they do not already exist. The passed object must also ...
  addListener(String eventName, Function handler, [Object scope], [Object options]) : void Observable
Appends an event handler to this component
  applyTo(String/HTMLElement/Element el) : Ext.form.Field Field
Apply the behaviors of this component to an existing element. This is used instead of render().
  autoSize() : void TextArea
Automatically grows the field to accomodate the height of the text up to the maximum field height allowed. This only ...
  clearInvalid() : void Field
Clear any invalid styles/messages for this field
  disable() : void Component
Disable this component
  enable() : void Component
Enable this component
  fireEvent(String eventName, Object... args) : Boolean Observable
Fires the specified event with the passed parameters (minus the event name).
  focus(Boolean selectText) : void Component
Try to focus this component
  getEl() : Ext.Element Component
Returns the underlying Ext.Element
  getId() : String Component
Returns the id of this component
  getName() : String Field
Returns the name attribute of the field if available
  getRawValue() : Mixed Field
Returns the raw data value which may or may not be a valid, defined value. To return a normalized value see getValue.
  getValue() : Mixed Field
Returns the normalized data value (undefined or emptyText will be returned as ''). To return the raw value see getRa...
  hasListener(String eventName) : Boolean Observable
Checks to see if this object is currently listening for a specified event
  hide() : void Component
Hide this component
  isValid(Boolean preventMark) : Boolean Field
Returns whether or not the field value is currently valid
  isVisible() : void Component
Returns true if this component is visible
  markInvalid(String msg) : void Field
Mark this field as invalid
  on(String eventName, Function handler, [Object options]) : void Observable
Appends an event handler to this element (shorthand for addListener)
  purgeListeners() : void Observable
Removes all listeners for this object
  removeListener(String eventName, Function handler, [Object scope]) : void Observable
Removes a listener
  render([String/HTMLElement/Element container]) : void Component
If this is a lazy rendering component, render it to its container element
  reset() : void Field
Resets the current field value to the originally-loaded value and clears any validation messages
  selectText([Number start], [Number end]) : void TextField
Selects text in this field
  setDisabled(Boolean disabled) : void Component
Convenience function for setting disabled/enabled by boolean
  setRawValue(Mixed value) : void Field
Sets the underlying DOM field's value directly, bypassing validation. To set the value with validation see setValue.
  setSize(Number width, Number height) : void Field
Sets the height and width of the field
  setValue(Mixed value) : void Field
Sets a data value into the field and validates it. To set the value directly without validation see setRawValue.
  setVisible(Boolean visible) : void Component
Convenience function to hide or show this component by boolean
  show() : void Component
Show this component
  un(String eventName, Function handler, [Object scope]) : void Observable
Removes a listener (shorthand for removeListener)
  validate() : Boolean Field
Validates the field value
  validateValue(Mixed value) : Boolean TextField
Validates a value according to the field's validation rules and marks the field as invalid if the validation fails

Public Events

Event Defined By
  autosize : (Ext.form.Field this, Number width) TextField
Fires when the autosize function is triggered. The field may or may not have actually changed size according to the ...
  beforedestroy : (Ext.Component this) Component
Fires before the component is destroyed
  beforehide : (Ext.Component this) Component
Fires before the component is hidden
  beforerender : (Ext.Component this) Component
Fires before the component is rendered
  beforeshow : (Ext.Component this) Component
Fires before the component is shown
  blur : (Ext.form.Field this) Field
Fires when
  change : (Ext.form.Field this, Mixed value, Mixed value) Field
Fires just before the field blurs if the field value has changed
  destroy : (Ext.Component this) Component
Fires after the component is destroyed
  disable : (Ext.Component this) Component
Fires after the component is disabled
  enable : (Ext.Component this) Component
Fires after the component is enabled
  focus : (Ext.form.Field this) Field
Fires when this field receives input focus
  hide : (Ext.Component this) Component
Fires after the component is hidden
  invalid : (Ext.form.Field this, String msg) Field
Fires after the field has been marked as invalid
  render : (Ext.Component this) Component
Fires after the component is rendered
  show : (Ext.Component this) Component
Fires after the component is shown
  specialkey : (Ext.form.Field this, Ext.EventObject e) Field
Fires when any key related to navigation (arrows, tab, enter, esc, etc.) is pressed. You can check Ext.EventObject.g...
  valid : (Ext.form.Field this) Field
Fires after the field has been validated with no errors

Config Options

Config Options Defined By
  allowBlank : Boolean TextField
False to validate that the value length > 0 (defaults to true)
  autoCreate : String/Object Field
A DomHelper element spec, or true for a default element spec (defaults to {tag: "input", type: "text", size: "20", au...
  blankText : String TextField
Error text to display if the allow blank validation fails (defaults to "This field is required")
  disableKeyFilter : Boolean TextField
True to disable input keystroke filtering (defaults to false)
  emptyClass : String TextField
The CSS class to apply to an empty field to style the emptyText (defaults to 'x-form-empty-field'). This class is aut...
  emptyText : String TextField
The default text to display in an empty field (defaults to null).
  fieldClass : String Field
The default CSS class for the field (defaults to "x-form-field")
  focusClass : String Field
The CSS class to use when the field receives focus (defaults to "x-form-focus")
  grow : Boolean TextField
True if this field should automatically grow and shrink to its content
  growMax : Number TextArea
The maximum height to allow when grow = true (defaults to 1000)
  growMin : Number TextArea
The minimum height to allow when grow = true (defaults to 60)
  inputType : String Field
The type attribute for input fields - e.g. radio, text, password. (defaults to "text")
  invalidClass : String Field
The CSS class to use when marking a field invalid (defaults to "x-form-invalid")
  invalidText : String Field
The error text to use when marking a field invalid and no message is provided (defaults to "The value in this field i...
  maskRe : String TextField
An input mask regular expression that will be used to filter keystrokes that don't match (defaults to null)
  maxLength : Number TextField
Maximum input field length allowed (defaults to Number.MAX_VALUE)
  maxLengthText : String TextField
Error text to display if the maximum length validation fails (defaults to "The maximum length for this field is {maxL...
  minLength : Number TextField
Minimum input field length required (defaults to 0)
  minLengthText : String TextField
Error text to display if the minimum length validation fails (defaults to "The minimum length for this field is {minL...
  msgFx : String Field
Experimental The effect used when displaying a validation message under the field (defaults to 'normal').
  msgTarget : String Field
The location where error text should display. Should be one of the following values (defaults to 'qtip'): Value Desc...
  preventScrollbars : Boolean TextArea
True to prevent scrollbars from appearing regardless of how much text is in the field (equivalent to setting overflow...
  regex : RegExp TextField
A JavaScript RegExp object to be tested against the field value during validation (defaults to null). If available, t...
  regexText : String TextField
The error text to display if regex is used and the test fails during validation (defaults to "")
  selectOnFocus : Boolean TextField
True to automatically select any existing field text when the field receives input focus (defaults to false)
  validateOnBlur : String/Boolean Field
Defaults to true.
  validationDelay : Number Field
The length of time in milliseconds after user input begins until validation is initiated (defaults to 250)
  validationEvent : String/Boolean Field
The event that should initiate field validation. Set to false to disable automatic validation. (defaults to "keyup")
  validator : Function TextField
A custom validation function to be called during field validation (defaults to null). If available, this function wil...
  value : Mixed Field
A value to initialize this field with
  vtype : String TextField
A validation type name as defined in Ext.form.VTypes (defaults to null)

Property Details

disabled

public Object disabled
true if this component is disabled. Read-only.
This property is defined by Component.

disabledClass

public Object disabledClass
CSS class added to the component when it is disabled.
This property is defined by Component.

hidden

public Object hidden
true if this component is hidden. Read-only.
This property is defined by Component.

rendered

public Object rendered
true if this component has been rendered. Read-only.
This property is defined by Component.

Constructor Details

TextArea

public function TextArea(Object config)
Creates a new TextArea
Parameters:
  • config : Object
    Configuration options

Method Details

addEvents

public function addEvents(Object object)
Copies any events from the passed object onto this object if they do not already exist. The passed object must also inherit from Observable for this method to have any effect.
Parameters:
  • object : Object
    The object from which to copy events
Returns:
  • void
This method is defined by Observable.

addListener

public function addListener(String eventName, Function handler, [Object scope], [Object options])
Appends an event handler to this component
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The method the event invokes
  • scope : Object
    (optional) The scope in which to execute the handler function. The handler function's "this" context.
  • options : Object
    (optional) An object containing handler configuration properties. This may contain any of the following properties:
    • scope {Object} The scope in which to execute the handler function. The handler function's "this" context.
    • delegate {String} A simple selector to filter the target or look for a descendant of the target
    • stopEvent {Boolean} True to stop the event. That is stop propagation, and prevent the default action.
    • preventDefault {Boolean} True to prevent the default action
    • stopPropagation {Boolean} True to prevent event propagation
    • normalized {Boolean} False to pass a browser event to the handler function instead of an Ext.EventObject
    • delay {Number} The number of milliseconds to delay the invocation of the handler after te event fires.
    • single {Boolean} True to add a handler to handle just the next firing of the event, and then remove itself.
    • buffer {Number} Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.

    Combining Options
    Using the options argument, it is possible to combine different types of listeners:

    A normalized, delayed, one-time listener that auto stops the event and passes a custom argument (forumId)

    Code: 
    el.on('click', this.onClick, this, { single: true, delay: 100, stopEvent : true, forumId: 4 });

    The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers.

    Attaching multiple handlers in 1 call
    Code: 

    el.on({ 'click' : { fn: this.onClick scope: this, delay: 100 }, 'mouseover' : { fn: this.onMouseOver scope: this }, 'mouseout' : { fn: this.onMouseOut scope: this } });

    Or a shorthand syntax:
    Code: 

    el.on({ 'click' : this.onClick, 'mouseover' : this.onMouseOver, 'mouseout' : this.onMouseOut scope: this });
Returns:
  • void
This method is defined by Observable.

applyTo

public function applyTo(String/HTMLElement/Element el)
Apply the behaviors of this component to an existing element. This is used instead of render().
Parameters:
  • el : String/HTMLElement/Element
    The id of the node, a DOM Node or an existing Element
Returns:
  • Ext.form.Field
    this
This method is defined by Field.

autoSize

public function autoSize()
Automatically grows the field to accomodate the height of the text up to the maximum field height allowed. This only takes effect if grow = true and fires the autosize event.
Parameters:
  • None.
Returns:
  • void
This method is defined by TextArea.

clearInvalid

public function clearInvalid()
Clear any invalid styles/messages for this field
Parameters:
  • None.
Returns:
  • void
This method is defined by Field.

disable

public function disable()
Disable this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

enable

public function enable()
Enable this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

fireEvent

public function fireEvent(String eventName, Object... args)
Fires the specified event with the passed parameters (minus the event name).
Parameters:
  • eventName : String
  • args : Object...
    Variable number of parameters are passed to handlers
Returns:
  • Boolean
    returns false if any of the handlers return false otherwise it returns true
This method is defined by Observable.

focus

public function focus(Boolean selectText)
Try to focus this component
Parameters:
  • selectText : Boolean
    True to also select the text in this component (if applicable)
Returns:
  • void
This method is defined by Component.

getEl

public function getEl()
Returns the underlying Ext.Element
Parameters:
  • None.
Returns:
  • Ext.Element
    The element
This method is defined by Component.

getId

public function getId()
Returns the id of this component
Parameters:
  • None.
Returns:
  • String
This method is defined by Component.

getName

public function getName()
Returns the name attribute of the field if available
Parameters:
  • None.
Returns:
  • String
    name The field name
This method is defined by Field.

getRawValue

public function getRawValue()
Returns the raw data value which may or may not be a valid, defined value. To return a normalized value see getValue.
Parameters:
  • None.
Returns:
  • Mixed
    value The field value
This method is defined by Field.

getValue

public function getValue()
Returns the normalized data value (undefined or emptyText will be returned as ''). To return the raw value see getRawValue.
Parameters:
  • None.
Returns:
  • Mixed
    value The field value
This method is defined by Field.

hasListener

public function hasListener(String eventName)
Checks to see if this object is currently listening for a specified event
Parameters:
  • eventName : String
    The name of the event to check for
Returns:
  • Boolean
    True if the event is being listened for, else false
This method is defined by Observable.

hide

public function hide()
Hide this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

isValid

public function isValid(Boolean preventMark)
Returns whether or not the field value is currently valid
Parameters:
  • preventMark : Boolean
    True to disable marking the field invalid
Returns:
  • Boolean
    True if the value is valid, else false
This method is defined by Field.

isVisible

public function isVisible()
Returns true if this component is visible
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

markInvalid

public function markInvalid(String msg)
Mark this field as invalid
Parameters:
  • msg : String
    The validation message
Returns:
  • void
This method is defined by Field.

on

public function on(String eventName, Function handler, [Object options])
Appends an event handler to this element (shorthand for addListener)
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The method the event invokes
  • options : Object
    (optional)
Returns:
  • void
This method is defined by Observable.

purgeListeners

public function purgeListeners()
Removes all listeners for this object
Parameters:
  • None.
Returns:
  • void
This method is defined by Observable.

removeListener

public function removeListener(String eventName, Function handler, [Object scope])
Removes a listener
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The handler to remove
  • scope : Object
    (optional) The scope (this object) for the handler
Returns:
  • void
This method is defined by Observable.

render

public function render([String/HTMLElement/Element container])
If this is a lazy rendering component, render it to its container element
Parameters:
  • container : String/HTMLElement/Element
    (optional) The element this component should be rendered into. If it is being applied to existing markup, this should be left off.
Returns:
  • void
This method is defined by Component.

reset

public function reset()
Resets the current field value to the originally-loaded value and clears any validation messages
Parameters:
  • None.
Returns:
  • void
This method is defined by Field.

selectText

public function selectText([Number start], [Number end])
Selects text in this field
Parameters:
  • start : Number
    (optional) The index where the selection should start (defaults to 0)
  • end : Number
    (optional) The index where the selection should end (defaults to the text length)
Returns:
  • void
This method is defined by TextField.

setDisabled

public function setDisabled(Boolean disabled)
Convenience function for setting disabled/enabled by boolean
Parameters:
  • disabled : Boolean
Returns:
  • void
This method is defined by Component.

setRawValue

public function setRawValue(Mixed value)
Sets the underlying DOM field's value directly, bypassing validation. To set the value with validation see setValue.
Parameters:
  • value : Mixed
    The value to set
Returns:
  • void
This method is defined by Field.

setSize

public function setSize(Number width, Number height)
Sets the height and width of the field
Parameters:
  • width : Number
    The new field width in pixels
  • height : Number
    The new field height in pixels
Returns:
  • void
This method is defined by Field.

setValue

public function setValue(Mixed value)
Sets a data value into the field and validates it. To set the value directly without validation see setRawValue.
Parameters:
  • value : Mixed
    The value to set
Returns:
  • void
This method is defined by Field.

setVisible

public function setVisible(Boolean visible)
Convenience function to hide or show this component by boolean
Parameters:
  • visible : Boolean
    True to show, false to hide
Returns:
  • void
This method is defined by Component.

show

public function show()
Show this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

un

public function un(String eventName, Function handler, [Object scope])
Removes a listener (shorthand for removeListener)
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The handler to remove
  • scope : Object
    (optional) The scope (this object) for the handler
Returns:
  • void
This method is defined by Observable.

validate

public function validate()
Validates the field value
Parameters:
  • None.
Returns:
  • Boolean
    True if the value is valid, else false
This method is defined by Field.

validateValue

public function validateValue(Mixed value)
Validates a value according to the field's validation rules and marks the field as invalid if the validation fails
Parameters:
  • value : Mixed
    The value to validate
Returns:
  • Boolean
    True if the value is valid, else false
This method is defined by TextField.

Event Details

autosize

public event autosize
Fires when the autosize function is triggered. The field may or may not have actually changed size according to the default logic, but this event provides a hook for the developer to apply additional logic at runtime to resize the field if needed.
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
    This text field
  • width : Number
    The new field width
This event is defined by TextField.

beforedestroy

public event beforedestroy
Fires before the component is destroyed
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

beforehide

public event beforehide
Fires before the component is hidden
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

beforerender

public event beforerender
Fires before the component is rendered
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

beforeshow

public event beforeshow
Fires before the component is shown
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

blur

public event blur
Fires when
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
This event is defined by Field.

change

public event change
Fires just before the field blurs if the field value has changed
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
  • value : Mixed
    The changed value
  • value : Mixed
    The original value
This event is defined by Field.

destroy

public event destroy
Fires after the component is destroyed
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

disable

public event disable
Fires after the component is disabled
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

enable

public event enable
Fires after the component is enabled
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

focus

public event focus
Fires when this field receives input focus
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
This event is defined by Field.

hide

public event hide
Fires after the component is hidden
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

invalid

public event invalid
Fires after the field has been marked as invalid
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
  • msg : String
    The validation message
This event is defined by Field.

render

public event render
Fires after the component is rendered
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

show

public event show
Fires after the component is shown
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

specialkey

public event specialkey
Fires when any key related to navigation (arrows, tab, enter, esc, etc.) is pressed. You can check Ext.EventObject.getKey to determine which key was pressed.
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
  • e : Ext.EventObject
    The event object
This event is defined by Field.

valid

public event valid
Fires after the field has been validated with no errors
Subscribers will be called with the following parameters:
  • this : Ext.form.Field
This event is defined by Field.

Config Details

allowBlank

allowBlank : Boolean
False to validate that the value length > 0 (defaults to true)
This config option is defined by TextField.

autoCreate

autoCreate : String/Object
A DomHelper element spec, or true for a default element spec (defaults to {tag: "input", type: "text", size: "20", autocomplete: "off"})
This config option is defined by Field.

blankText

blankText : String
Error text to display if the allow blank validation fails (defaults to "This field is required")
This config option is defined by TextField.

disableKeyFilter

disableKeyFilter : Boolean
True to disable input keystroke filtering (defaults to false)
This config option is defined by TextField.

emptyClass

emptyClass : String
The CSS class to apply to an empty field to style the emptyText (defaults to 'x-form-empty-field'). This class is automatically added and removed as needed depending on the current field value.
This config option is defined by TextField.

emptyText

emptyText : String
The default text to display in an empty field (defaults to null).
This config option is defined by TextField.

fieldClass

fieldClass : String
The default CSS class for the field (defaults to "x-form-field")
This config option is defined by Field.

focusClass

focusClass : String
The CSS class to use when the field receives focus (defaults to "x-form-focus")
This config option is defined by Field.

grow

grow : Boolean
True if this field should automatically grow and shrink to its content
This config option is defined by TextField.

growMax

growMax : Number
The maximum height to allow when grow = true (defaults to 1000)
This config option is defined by TextArea.

growMin

growMin : Number
The minimum height to allow when grow = true (defaults to 60)
This config option is defined by TextArea.

inputType

inputType : String
The type attribute for input fields - e.g. radio, text, password. (defaults to "text")
This config option is defined by Field.

invalidClass

invalidClass : String
The CSS class to use when marking a field invalid (defaults to "x-form-invalid")
This config option is defined by Field.

invalidText

invalidText : String
The error text to use when marking a field invalid and no message is provided (defaults to "The value in this field is invalid")
This config option is defined by Field.

maskRe

maskRe : String
An input mask regular expression that will be used to filter keystrokes that don't match (defaults to null)
This config option is defined by TextField.

maxLength

maxLength : Number
Maximum input field length allowed (defaults to Number.MAX_VALUE)
This config option is defined by TextField.

maxLengthText

maxLengthText : String
Error text to display if the maximum length validation fails (defaults to "The maximum length for this field is {maxLength}")
This config option is defined by TextField.

minLength

minLength : Number
Minimum input field length required (defaults to 0)
This config option is defined by TextField.

minLengthText

minLengthText : String
Error text to display if the minimum length validation fails (defaults to "The minimum length for this field is {minLength}")
This config option is defined by TextField.

msgFx

msgFx : String
Experimental The effect used when displaying a validation message under the field (defaults to 'normal').
This config option is defined by Field.

msgTarget

msgTarget : String
The location where error text should display. Should be one of the following values (defaults to 'qtip'): 
 Value Description ----------- ---------------------------------------------------------------------- qtip Display a quick tip when the user hovers over the field title Display a default browser title attribute popup under Add a block div beneath the field containing the error text side Add an error icon to the right of the field with a popup on hover [element id] Add the error text directly to the innerHTML of the specified element
This config option is defined by Field.

preventScrollbars

preventScrollbars : Boolean
True to prevent scrollbars from appearing regardless of how much text is in the field (equivalent to setting overflow: hidden, defaults to false)
This config option is defined by TextArea.

regex

regex : RegExp
A JavaScript RegExp object to be tested against the field value during validation (defaults to null). If available, this regex will be evaluated only after the basic validators all return true, and will be passed the current field value. If the test fails, the field will be marked invalid using regexText.
This config option is defined by TextField.

regexText

regexText : String
The error text to display if regex is used and the test fails during validation (defaults to "")
This config option is defined by TextField.

selectOnFocus

selectOnFocus : Boolean
True to automatically select any existing field text when the field receives input focus (defaults to false)
This config option is defined by TextField.

validateOnBlur

validateOnBlur : String/Boolean
Defaults to true.
This config option is defined by Field.

validationDelay

validationDelay : Number
The length of time in milliseconds after user input begins until validation is initiated (defaults to 250)
This config option is defined by Field.

validationEvent

validationEvent : String/Boolean
The event that should initiate field validation. Set to false to disable automatic validation. (defaults to "keyup")
This config option is defined by Field.

validator

validator : Function
A custom validation function to be called during field validation (defaults to null). If available, this function will be called only after the basic validators all return true, and will be passed the current field value and expected to return boolean true if the value is valid or a string error message if invalid.
This config option is defined by TextField.

value

value : Mixed
A value to initialize this field with
This config option is defined by Field.

vtype

vtype : String
A validation type name as defined in Ext.form.VTypes (defaults to null)
This config option is defined by TextField.
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