Properties

Methods

Events

Config Options

Direct Link

Observable
  Component
    BoxComponent
      Field
        Checkbox

Class Ext.form.Checkbox

Package:	Ext.form
Defined In:	Checkbox.js
Class:	Checkbox
Subclasses:	Radio
Extends:	Field

* Single checkbox field. Can be used as a direct replacement for traditional checkbox fields.

Config Options

Config Options		Defined By
	allowDomMove : Boolean Whether the component can move the Dom node when rendering (defaults to true).	Component
	applyTo : Mixed The id of the node, a DOM node or an existing Element corresponding to a DIV that is already present in the document ... The id of the node, a DOM node or an existing Element corresponding to a DIV that is already present in the document that specifies some structural markup for this component. When applyTo is used, constituent parts of the component can also be specified by id or CSS class name within the main element, and the component being created may attempt to create its subcomponents from that markup if applicable. Using this config, a call to render() is not required. If applyTo is specified, any value passed for renderTo will be ignored and the target element's parent node will automatically be used as the component's container.	Component
	autoCreate : String/Object A DomHelper element spec, or true for a default element spec (defaults to {tag: "input", type: "checkbox", autocomple... A DomHelper element spec, or true for a default element spec (defaults to {tag: "input", type: "checkbox", autocomplete: "off"}).	Checkbox
	autoEl : String/Object A tag name or DomHelper spec to create an element with. This is intended to create shorthand utility components inlin... A tag name or DomHelper spec to create an element with. This is intended to create shorthand utility components inline via JSON. It should not be used for higher level components which already create their own elements. Example usage: `{xtype:'box', autoEl: 'div', cls:'my-class'} {xtype:'box', autoEl: {tag:'blockquote', html:'autoEl is cool!'}} // with DomHelper`	Component
	autoHeight : Boolean True to use height:'auto', false to use fixed height (defaults to false). Note: Although many components inherit this... True to use height:'auto', false to use fixed height (defaults to false). Note: Although many components inherit this config option, not all will function as expected with a height of 'auto'. Setting autoHeight:true means that the browser will manage height based on the element's contents, and that Ext will not manage it at all.	BoxComponent
	autoShow : Boolean True if the component should check for hidden classes (e.g. 'x-hidden' or 'x-hide-display') and remove them on render... True if the component should check for hidden classes (e.g. 'x-hidden' or 'x-hide-display') and remove them on render (defaults to false).	Component
	autoWidth : Boolean True to use width:'auto', false to use fixed width (defaults to false). Note: Although many components inherit this c... True to use width:'auto', false to use fixed width (defaults to false). Note: Although many components inherit this config option, not all will function as expected with a width of 'auto'. Setting autoWidth:true means that the browser will manage width based on the element's contents, and that Ext will not manage it at all.	BoxComponent
	boxLabel : String The text that appears beside the checkbox (defaults to '')	Checkbox
	checked : Boolean True if the checkbox should render already checked (defaults to false)	Checkbox
	checkedCls : String The CSS class to use when the control is checked (defaults to 'x-form-check-checked'). Note that this class applies t... The CSS class to use when the control is checked (defaults to 'x-form-check-checked'). Note that this class applies to both checkboxes and radio buttons and is added to the control's wrapper element.	Checkbox
	clearCls : String The CSS class used to provide field clearing (defaults to 'x-form-clear-left'). This config is only used when this Co... The CSS class used to provide field clearing (defaults to 'x-form-clear-left'). This config is only used when this Component is rendered by a Container which has been configured to use the FormLayout layout manager.	Component
	cls : String An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be useful for a... An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be useful for adding customized styles to the component or any of its children using standard CSS rules.	Component
	ctCls : String An optional extra CSS class that will be added to this component's container (defaults to ''). This can be useful for... An optional extra CSS class that will be added to this component's container (defaults to ''). This can be useful for adding customized styles to the container or any of its children using standard CSS rules.	Component
	disabled : Boolean Render this component disabled (default is false).	Component
	fieldClass : String The default CSS class for the field (defaults to "x-form-field")	Field
	fieldLabel : String The label text to display next to this Component (defaults to '') This config is only used when this Component is ren... The label text to display next to this Component (defaults to '') This config is only used when this Component is rendered by a Container which has been configured to use the FormLayout layout manager. Example use: `new Ext.FormPanel({ height: 100, renderTo: Ext.getBody(), items: [{ xtype: 'textfield', fieldLabel: 'Name' }] });`	Component
	focusCls : String The CSS class to use when the control receives input focus (defaults to 'x-form-check-focus'). Note that this class a... The CSS class to use when the control receives input focus (defaults to 'x-form-check-focus'). Note that this class applies to both checkboxes and radio buttons and is added to the control's wrapper element.	Checkbox
	handler : Function A function called when the checked value changes (can be used instead of handling the check event). The handler is pa... A function called when the checked value changes (can be used instead of handling the check event). The handler is passed the following parameters: checkbox : Ext.form.Checkbox The Checkbox being toggled. checked : Boolean The new checked state of the checkbox.	Checkbox
	height : Number The height of this component in pixels (defaults to auto).	BoxComponent
	hidden : Boolean Render this component hidden (default is false).	Component
	hideLabel : Boolean True to completely hide the label element (defaults to false). By default, even if you do not specify a fieldLabel th... True to completely hide the label element (defaults to false). By default, even if you do not specify a fieldLabel the space will still be reserved so that the field will line up with other fields that do have labels. Setting this to true will cause the field to not reserve that space. This config is only used when this Component is rendered by a Container which has been configured to use the FormLayout layout manager. Example use: `new Ext.FormPanel({ height: 100, renderTo: Ext.getBody(), items: [{ xtype: 'textfield' hideLabel: true }] });`	Component
	hideMode : String How this component should be hidden. Supported values are "visibility" (css visibility), "offsets" (negative offset p... How this component should be hidden. Supported values are "visibility" (css visibility), "offsets" (negative offset position) and "display" (css display) - defaults to "display". For Containers which may be hidden and shown as part of a card layout Container such as a TabPanel, it is recommended that hideMode is configured as "offsets". This ensures that hidden Components still have height and width so that layout managers can perform measurements when calculating layouts.	Component
	hideParent : Boolean True to hide and show the component's container when hide/show is called on the component, false to hide and show the... True to hide and show the component's container when hide/show is called on the component, false to hide and show the component itself (defaults to false). For example, this can be used as a shortcut for a hide button on a window by setting hide:true on the button when adding it to its parent container.	Component
	id : String The unique id of this component (defaults to an auto-assigned id). You should assign an id if you need to be able to ... The unique id of this component (defaults to an auto-assigned id). You should assign an id if you need to be able to access the component later and you do not have an object reference available (e.g., using Ext.ComponentMgr.getCmp). Note that this id will also be used as the element id for the containing HTML element that is rendered to the page for this component. This allows you to write id-based CSS rules to style the specific instance of this component uniquely, and also to select sub-elements using this component's id as the parent.	Component
	inputType : String The type attribute for input fields -- e.g. radio, text, password, file (defaults to "text"). The types "file" and "p... The type attribute for input fields -- e.g. radio, text, password, file (defaults to "text"). The types "file" and "password" must be used to render those field types currently -- there are no separate Ext components for those. Note that if you use `inputType:'file'`, emptyText is not supported and should be avoided.	Field
	inputValue : String The value that should go into the generated input element's value attribute (defaults to undefined, with no value att... The value that should go into the generated input element's value attribute (defaults to undefined, with no value attribute)	Checkbox
	invalidClass : String The CSS class to use when marking a field invalid (defaults to "x-form-invalid")	Field
	invalidText : String The error text to use when marking a field invalid and no message is provided (defaults to "The value in this field i... The error text to use when marking a field invalid and no message is provided (defaults to "The value in this field is invalid")	Field
	itemCls : String An additional CSS class to apply to the wrapper's form item element of this field (defaults to the container's itemCl... An additional CSS class to apply to the wrapper's form item element of this field (defaults to the container's itemCls value if set, or ''). Since it is applied to the item wrapper, it allows you to write standard CSS rules that can apply to the field, the label (if specified) or any other element within the markup for the field. This config is only used when this Component is rendered by a Container which has been configured to use the FormLayout layout manager. Example use: `// Apply a style to the field's label: <style> .required .x-form-item-label {font-weight:bold;color:red;} </style> new Ext.FormPanel({ height: 100, renderTo: Ext.getBody(), items: [{ xtype: 'textfield', fieldLabel: 'Name', itemCls: 'required' //this label will be styled },{ xtype: 'textfield', fieldLabel: 'Favorite Color' }] });`	Component
	labelSeparator : String The standard separator to display after the text of each form label (defaults to the value of Ext.layout.FormLayout.l... The standard separator to display after the text of each form label (defaults to the value of Ext.layout.FormLayout.labelSeparator, which is a colon ':' by default). To display no separator for this field's label specify empty string ''. This config is only used when this Component is rendered by a Container which has been configured to use the FormLayout layout manager. Example use: `new Ext.FormPanel({ height: 100, renderTo: Ext.getBody(), items: [{ xtype: 'textfield', fieldLabel: 'Name', labelSeparator: '...' }] });`	Component
	labelStyle : String A CSS style specification to apply directly to this field's label (defaults to the container's labelStyle value if se... A CSS style specification to apply directly to this field's label (defaults to the container's labelStyle value if set, or '').. This config is only used when this Component is rendered by a Container which has been configured to use the FormLayout layout manager. Example use: `new Ext.FormPanel({ height: 100, renderTo: Ext.getBody(), items: [{ xtype: 'textfield', fieldLabel: 'Name', labelStyle: 'font-weight:bold;' }] });`	Component
	listeners : Object (optional) A config object containing one or more event handlers to be added to this object during initialization. Th... (optional) A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once.	Observable
	mouseDownCls : String The CSS class to use when the control is being actively clicked (defaults to 'x-form-check-down'). Note that this cla... The CSS class to use when the control is being actively clicked (defaults to 'x-form-check-down'). Note that this class applies to both checkboxes and radio buttons and is added to the control's wrapper element.	Checkbox
	msgFx : String Experimental The effect used when displaying a validation message under the field (defaults to 'normal').	Field
	msgTarget : String The location where error text should display. Should be one of the following values (defaults to 'qtip'): Value ... 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	Field
	name : String The field's HTML name attribute (defaults to "").	Field
	overCls : String The CSS class to use when the control is hovered over (defaults to 'x-form-check-over'). Note that this class applies... The CSS class to use when the control is hovered over (defaults to 'x-form-check-over'). Note that this class applies to both checkboxes and radio buttons and is added to the control's wrapper element.	Checkbox
	pageX : Number The page level x coordinate for this component if contained within a positioning container.	BoxComponent
	pageY : Number The page level y coordinate for this component if contained within a positioning container.	BoxComponent
	plugins : Object/Array An object or array of objects that will provide custom functionality for this component. The only requirement for a v... An object or array of objects that will provide custom functionality for this component. The only requirement for a valid plugin is that it contain an init method that accepts a reference of type Ext.Component. When a component is created, if any plugins are available, the component will call the init method on each plugin, passing a reference to itself. Each plugin can then call methods or respond to events on the component as needed to provide its functionality.	Component
	readOnly : Boolean True to mark the field as readOnly in HTML (defaults to false) -- Note: this only sets the element's readOnly DOM att... True to mark the field as readOnly in HTML (defaults to false) -- Note: this only sets the element's readOnly DOM attribute.	Field
	renderTo : Mixed The id of the node, a DOM node or an existing Element that will be the container to render this component into. Using... The id of the node, a DOM node or an existing Element that will be the container to render this component into. Using this config, a call to render() is not required.	Component
	scope : Object An object to use as the scope ("this" reference) of the handler function (defaults to this Checkbox).	Checkbox
	stateEvents : Array An array of events that, when fired, should trigger this component to save its state (defaults to none). These can be... An array of events that, when fired, should trigger this component to save its state (defaults to none). These can be any types of events supported by this component, including browser or custom events (e.g., ['click', 'customerchange']). See stateful for an explanation of saving and restoring Component state.	Component
	stateId : String The unique id for this component to use for state management purposes (defaults to the component id if one was set, o... The unique id for this component to use for state management purposes (defaults to the component id if one was set, otherwise null if the component is using a generated id). See stateful for an explanation of saving and restoring Component state.	Component
	stateful : Boolean A flag which causes the Component to attempt to restore the state of internal properties from a saved state on startu... A flag which causes the Component to attempt to restore the state of internal properties from a saved state on startup. The component must have either a stateId or id assigned for state to be managed. Auto-generated ids are not guaranteed to be stable across page loads and cannot be relied upon to save and restore the same state for a component. For state saving to work, the state manager's provider must have been set to an implementation of Ext.state.Provider which overrides the set and get methods to save and recall name/value pairs. A built-in implementation, Ext.state.CookieProvider is available. To set the state provider for the current page: `Ext.state.Manager.setProvider(new Ext.state.CookieProvider());` Components attempt to save state when one of the events listed in the stateEvents configuration fires. You can perform extra processing on state save and restore by attaching handlers to the beforestaterestore, staterestore, beforestatesave and statesave events	Component
	style : String A custom style specification to be applied to this component's Element. Should be a valid argument to Ext.Element.app... A custom style specification to be applied to this component's Element. Should be a valid argument to Ext.Element.applyStyles.	Component
	tabIndex : Number The tabIndex for this field. Note this only applies to fields that are rendered, not those which are built via applyT... The tabIndex for this field. Note this only applies to fields that are rendered, not those which are built via applyTo (defaults to 0, which allows the browser to manage the tab index).	Checkbox
	validateOnBlur : Boolean Whether the field should validate when it loses focus (defaults to true).	Field
	validationDelay : Number The length of time in milliseconds after user input begins until validation is initiated (defaults to 250)	Field
	validationEvent : String/Boolean The event that should initiate field validation. Set to false to disable automatic validation (defaults to "keyup").	Field
	width : Number The width of this component in pixels (defaults to auto).	BoxComponent
	x : Number The local x (left) coordinate for this component if contained within a positioning container.	BoxComponent
	xtype : String The registered xtype to create. This config option is not used when passing a config object into a constructor. This ... The registered xtype to create. This config option is not used when passing a config object into a constructor. This config option is used only when lazy instantiation is being used, and a child item of a Container is being specified not as a fully instantiated Component, but as a Component config object. The xtype will be looked up at render time up to determine what type of child Component to create. The predefined xtypes are listed here. If you subclass Components to create your own Components, you may register them using Ext.ComponentMgr.registerType in order to be able to take advantage of lazy instantiation and rendering.	Component
	y : Number The local y (top) coordinate for this component if contained within a positioning container.	BoxComponent

Public Properties

Property		Defined By
	disabled : Boolean True if this component is disabled. Read-only.	Component
	hidden : Boolean True if this component is hidden. Read-only.	Component
	initialConfig : Object This Component's initial configuration specification. Read-only.	Component
	ownerCt : Ext.Container The component's owner Ext.Container (defaults to undefined, and is set automatically when the component is added to a... The component's owner Ext.Container (defaults to undefined, and is set automatically when the component is added to a container). Read-only.	Component
	rendered : Boolean True if this component has been rendered. Read-only.	Component

Public Methods

Method		Defined By
	Checkbox( `Object config` ) Creates a new Checkbox Creates a new Checkbox Parameters: `config` : Object Configuration options Returns:	Checkbox
	addClass( `string cls` ) : void Adds a CSS class to the component's underlying element. Adds a CSS class to the component's underlying element. Parameters: `cls` : string The CSS class name to add Returns: `void`	Component
	addEvents( `Object object` ) : void Used to define events on this Observable Used to define events on this Observable Parameters: `object` : Object The object with the events defined Returns: `void`	Observable
	addListener( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void Appends an event handler to this component 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. delay : Number The number of milliseconds to delay the invocation of the handler after the 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) `el.on('click', this.onClick, this, { single: true, delay: 100, forumId: 4 });` Attaching multiple handlers in 1 call The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers. `foo.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: `foo.on({ 'click' : this.onClick, 'mouseover' : this.onMouseOver, 'mouseout' : this.onMouseOut, scope: this });` Returns: `void`	Observable
	applyToMarkup( `String/HTMLElement el` ) : void Apply this component to existing markup that is valid. With this function, no call to render() is required. Apply this component to existing markup that is valid. With this function, no call to render() is required. Parameters: `el` : String/HTMLElement Returns: `void`	Component
	cloneConfig( `Object overrides` ) : Ext.Component Clone the current component using the original config values passed into this instance by default. Clone the current component using the original config values passed into this instance by default. Parameters: `overrides` : Object A new config containing any properties to override in the cloned version. An id property can be passed on this object, otherwise one will be generated to avoid duplicates. Returns: `Ext.Component` clone The cloned copy of this component	Component
	destroy() : void Destroys this component by purging any event listeners, removing the component's element from the DOM, removing the c... Destroys this component by purging any event listeners, removing the component's element from the DOM, removing the component from its Ext.Container (if applicable) and unregistering it from Ext.ComponentMgr. Destruction is generally handled automatically by the framework and this method should usually not need to be called directly. Parameters: None. Returns: `void`	Component
	disable() : Ext.Component Disable this component. Disable this component. Parameters: None. Returns: `Ext.Component` this	Component
	enable() : Ext.Component Enable this component. Enable this component. Parameters: None. Returns: `Ext.Component` this	Component
	findParentBy( `Function fcn`, [`Object scope`] ) : Ext.Container Find a container above this component at any level by a custom function. If the passed function returns true, the con... Find a container above this component at any level by a custom function. If the passed function returns true, the container will be returned. The passed function is called with the arguments (container, this component). Parameters: `fcn` : Function `scope` : Object (optional) Returns: `Ext.Container` The first Container for which the custom function returns true	Component
	findParentByType( `String/Class xtype` ) : Ext.Container Find a container above this component at any level by xtype or class Find a container above this component at any level by xtype or class Parameters: `xtype` : String/Class The xtype string for a component, or the class of the component directly Returns: `Ext.Container` The first Container which matches the given xtype or class	Component
	fireEvent( `String eventName`, `Object... args` ) : Boolean Fires the specified event with the passed parameters (minus the event name). 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	Observable
	focus( [`Boolean selectText`], [`Boolean/Number delay`] ) : Ext.Component Try to focus this component. Try to focus this component. Parameters: `selectText` : Boolean (optional) If applicable, true to also select the text in this component `delay` : Boolean/Number (optional) Delay the focus this number of milliseconds (true for 10 milliseconds) Returns: `Ext.Component` this	Component
	getBox( [`Boolean local`] ) : Object Gets the current box measurements of the component's underlying element. Gets the current box measurements of the component's underlying element. Parameters: `local` : Boolean (optional) If true the element's left and top are returned instead of page XY (defaults to false) Returns: `Object` box An object in the format {x, y, width, height}	BoxComponent
	getEl() : Ext.Element Returns the underlying Ext.Element. Returns the underlying Ext.Element. Parameters: None. Returns: `Ext.Element` The element	Component
	getId() : String Returns the id of this component. Returns the id of this component. Parameters: None. Returns: `String`	Component
	getItemId() : String Returns the item id of this component. Returns the item id of this component. Parameters: None. Returns: `String`	Component
	getName() : String Returns the name attribute of the field if available Returns the name attribute of the field if available Parameters: None. Returns: `String` name The field name	Field
	getPosition( [`Boolean local`] ) : Array Gets the current XY position of the component's underlying element. Gets the current XY position of the component's underlying element. Parameters: `local` : Boolean (optional) If true the element's left and top are returned instead of page XY (defaults to false) Returns: `Array` The XY position of the element (e.g., [100, 200])	BoxComponent
	getRawValue() : Mixed Returns the raw data value which may or may not be a valid, defined value. To return a normalized value see getValue. 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	Field
	getSize() : Object Gets the current size of the component's underlying element. Gets the current size of the component's underlying element. Parameters: None. Returns: `Object` An object containing the element's size {width: (element width), height: (element height)}	BoxComponent
	getValue() : Boolean Returns the checked state of the checkbox. Returns the checked state of the checkbox. Parameters: None. Returns: `Boolean` True if checked, else false	Checkbox
	getXType() : String Gets the xtype for this component as registered with Ext.ComponentMgr. For a list of all available xtypes, see the Ex... Gets the xtype for this component as registered with Ext.ComponentMgr. For a list of all available xtypes, see the Ext.Component header. Example usage: `var t = new Ext.form.TextField(); alert(t.getXType()); // alerts 'textfield'` Parameters: None. Returns: `String` The xtype	Component
	getXTypes() : String Returns this Component's xtype hierarchy as a slash-delimited string. For a list of all available xtypes, see the Ext... Returns this Component's xtype hierarchy as a slash-delimited string. For a list of all available xtypes, see the Ext.Component header. If using your own subclasses, be aware that a Component must register its own xtype to participate in determination of inherited xtypes. Example usage: `var t = new Ext.form.TextField(); alert(t.getXTypes()); // alerts 'component/box/field/textfield'` Parameters: None. Returns: `String` The xtype hierarchy string	Component
	hasListener( `String eventName` ) : Boolean Checks to see if this object has any listeners for a specified event Checks to see if this object has any listeners 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	Observable
	hide() : Ext.Component Hide this component. Hide this component. Parameters: None. Returns: `Ext.Component` this	Component
	isDirty() : void Returns true if this field has been changed since it was originally loaded and is not disabled. Returns true if this field has been changed since it was originally loaded and is not disabled. Parameters: None. Returns: `void`	Field
	isValid( `Boolean preventMark` ) : Boolean Returns whether or not the field value is currently valid 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	Field
	isVisible() : void Returns true if this component is visible. Returns true if this component is visible. Parameters: None. Returns: `void`	Component
	isXType( `String xtype`, [`Boolean shallow`] ) : void Tests whether or not this Component is of a specific xtype. This can test whether this Component is descended from th... Tests whether or not this Component is of a specific xtype. This can test whether this Component is descended from the xtype (default) or whether it is directly of the xtype specified (shallow = true). If using your own subclasses, be aware that a Component must register its own xtype to participate in determination of inherited xtypes. For a list of all available xtypes, see the Ext.Component header. Example usage: `var t = new Ext.form.TextField(); var isText = t.isXType('textfield'); // true var isBoxSubclass = t.isXType('box'); // true, descended from BoxComponent var isBoxInstance = t.isXType('box', true); // false, not a direct BoxComponent instance` Parameters: `xtype` : String The xtype to check for this Component `shallow` : Boolean (optional) False to check whether this Component is descended from the xtype (this is the default), or true to check whether this Component is directly of the specified xtype. Returns: `void`	Component
	on( `String eventName`, `Function handler`, [`Object scope`], [`Object options`] ) : void Appends an event handler to this element (shorthand for addListener) 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 `scope` : Object (optional) The scope in which to execute the handler function. The handler function's "this" context. `options` : Object (optional) Returns: `void`	Observable
	purgeListeners() : void Removes all listeners for this object Removes all listeners for this object Parameters: None. Returns: `void`	Observable
	relayEvents( `Object o`, `Array events` ) : void Relays selected events from the specified Observable as if the events were fired by `this`. Relays selected events from the specified Observable as if the events were fired by `this`. Parameters: `o` : Object The Observable whose events this object is to relay. `events` : Array Array of event names to relay. Returns: `void`	Observable
	removeClass( `string cls` ) : void Removes a CSS class from the component's underlying element. Removes a CSS class from the component's underlying element. Parameters: `cls` : string The CSS class name to remove Returns: `void`	Component
	removeListener( `String eventName`, `Function handler`, [`Object scope`] ) : void Removes a listener 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`	Observable
	render( [`Element/HTMLElement/String container`], [`String/Number position`] ) : void Render this Component into the passed HTML element. If you are using a Container object to house this Component, then... Render this Component into the passed HTML element. If you are using a Container object to house this Component, then do not use the render method. A Container's child Components are rendered by that Container's layout manager when the Container is first rendered. Certain layout managers allow dynamic addition of child components. Those that do include Ext.layout.CardLayout, Ext.layout.AnchorLayout, Ext.layout.FormLayout, Ext.layout.TableLayout. If the Container is already rendered when a new child Component is added, you may need to call the Container's doLayout to refresh the view which causes any unrendered child Components to be rendered. This is required so that you can add multiple child components if needed while only refreshing the layout once. When creating complex UIs, it is important to remember that sizing and positioning of child items is the responsibility of the Container's layout manager. If you expect child items to be sized in response to user interactions, you must configure the Container with a layout manager which creates and manages the type of layout you have in mind. Omitting the Container's layout config means that a basic layout manager is used which does nothing but render child components sequentially into the Container. No sizing or positioning will be performed in this situation. Parameters: `container` : Element/HTMLElement/String (optional) The element this Component should be rendered into. If it is being created from existing markup, this should be omitted. `position` : String/Number (optional) The element ID or DOM node index within the container before which this component will be inserted (defaults to appending to the end of the container) Returns: `void`	Component
	reset() : void Resets the current field value to the originally loaded value and clears any validation messages Resets the current field value to the originally loaded value and clears any validation messages Parameters: None. Returns: `void`	Field
	resumeEvents() : void Resume firing events. (see suspendEvents) Resume firing events. (see suspendEvents) Parameters: None. Returns: `void`	Observable
	setDisabled( `Boolean disabled` ) : void Convenience function for setting disabled/enabled by boolean. Convenience function for setting disabled/enabled by boolean. Parameters: `disabled` : Boolean Returns: `void`	Component
	setHeight( `Number height` ) : Ext.BoxComponent Sets the height of the component. This method fires the resize event. Sets the height of the component. This method fires the resize event. Parameters: `height` : Number The new height to set Returns: `Ext.BoxComponent` this	BoxComponent
	setPagePosition( `Number x`, `Number y` ) : Ext.BoxComponent Sets the page XY position of the component. To set the left and top instead, use setPosition. This method fires the ... Sets the page XY position of the component. To set the left and top instead, use setPosition. This method fires the move event. Parameters: `x` : Number The new x position `y` : Number The new y position Returns: `Ext.BoxComponent` this	BoxComponent
	setPosition( `Number left`, `Number top` ) : Ext.BoxComponent Sets the left and top of the component. To set the page XY position instead, use setPagePosition. This method fires ... Sets the left and top of the component. To set the page XY position instead, use setPagePosition. This method fires the move event. Parameters: `left` : Number The new left `top` : Number The new top Returns: `Ext.BoxComponent` this	BoxComponent
	setRawValue( `Mixed value` ) : Mixed Sets the underlying DOM field's value directly, bypassing validation. To set the value with validation see setValue. 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: `Mixed` value The field value that is set	Field
	setSize( `Number/Object width`, `Number height` ) : Ext.BoxComponent Sets the width and height of the component. This method fires the resize event. This method can accept either width... Sets the width and height of the component. This method fires the resize event. This method can accept either width and height as separate numeric arguments, or you can pass a size object like {width:10, height:20}. Parameters: `width` : Number/Object The new width to set, or a size object in the format {width, height} `height` : Number The new height to set (not required if a size object is passed as the first arg) Returns: `Ext.BoxComponent` this	BoxComponent
	setValue( `Boolean/String checked` ) : void Sets the checked state of the checkbox. Sets the checked state of the checkbox. Parameters: `checked` : Boolean/String True, 'true', '1', or 'on' to check the checkbox, any other value will uncheck it. Returns: `void`	Checkbox
	setVisible( `Boolean visible` ) : Ext.Component Convenience function to hide or show this component by boolean. Convenience function to hide or show this component by boolean. Parameters: `visible` : Boolean True to show, false to hide Returns: `Ext.Component` this	Component
	setWidth( `Number width` ) : Ext.BoxComponent Sets the width of the component. This method fires the resize event. Sets the width of the component. This method fires the resize event. Parameters: `width` : Number The new width to set Returns: `Ext.BoxComponent` this	BoxComponent
	show() : Ext.Component Show this component. Show this component. Parameters: None. Returns: `Ext.Component` this	Component
	suspendEvents() : void Suspend the firing of all events. (see resumeEvents) Suspend the firing of all events. (see resumeEvents) Parameters: None. Returns: `void`	Observable
	syncSize() : Ext.BoxComponent Force the component's size to recalculate based on the underlying element's current height and width. Force the component's size to recalculate based on the underlying element's current height and width. Parameters: None. Returns: `Ext.BoxComponent` this	BoxComponent
	un( `String eventName`, `Function handler`, [`Object scope`] ) : void Removes a listener (shorthand for removeListener) 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`	Observable
	updateBox( `Object box` ) : Ext.BoxComponent Sets the current box measurements of the component's underlying element. Sets the current box measurements of the component's underlying element. Parameters: `box` : Object An object in the format {x, y, width, height} Returns: `Ext.BoxComponent` this	BoxComponent
	validate() : Boolean Validates the field value Validates the field value Parameters: None. Returns: `Boolean` True if the value is valid, else false	Field

Public Events

Event		Defined By
	beforedestroy : ( `Ext.Component this` ) Fires before the component is destroyed. Return false to stop the destroy. Fires before the component is destroyed. Return false to stop the destroy. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	beforehide : ( `Ext.Component this` ) Fires before the component is hidden. Return false to stop the hide. Fires before the component is hidden. Return false to stop the hide. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	beforerender : ( `Ext.Component this` ) Fires before the component is rendered. Return false to stop the render. Fires before the component is rendered. Return false to stop the render. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	beforeshow : ( `Ext.Component this` ) Fires before the component is shown. Return false to stop the show. Fires before the component is shown. Return false to stop the show. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	beforestaterestore : ( `Ext.Component this`, `Object state` ) Fires before the state of the component is restored. Return false to stop the restore. Fires before the state of the component is restored. Return false to stop the restore. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values	Component
	beforestatesave : ( `Ext.Component this`, `Object state` ) Fires before the state of the component is saved to the configured state provider. Return false to stop the save. Fires before the state of the component is saved to the configured state provider. Return false to stop the save. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values	Component
	blur : ( `Ext.form.Field this` ) Fires when this field loses input focus. Fires when this field loses input focus. Listeners will be called with the following arguments: `this` : Ext.form.Field	Field
	change : ( `Ext.form.Field this`, `Mixed newValue`, `Mixed oldValue` ) Fires just before the field blurs if the field value has changed. Fires just before the field blurs if the field value has changed. Listeners will be called with the following arguments: `this` : Ext.form.Field `newValue` : Mixed The new value `oldValue` : Mixed The original value	Field
	check : ( `Ext.form.Checkbox this`, `Boolean checked` ) Fires when the checkbox is checked or unchecked. Fires when the checkbox is checked or unchecked. Listeners will be called with the following arguments: `this` : Ext.form.Checkbox This checkbox `checked` : Boolean The new checked value	Checkbox
	destroy : ( `Ext.Component this` ) Fires after the component is destroyed. Fires after the component is destroyed. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	disable : ( `Ext.Component this` ) Fires after the component is disabled. Fires after the component is disabled. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	enable : ( `Ext.Component this` ) Fires after the component is enabled. Fires after the component is enabled. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	focus : ( `Ext.form.Field this` ) Fires when this field receives input focus. Fires when this field receives input focus. Listeners will be called with the following arguments: `this` : Ext.form.Field	Field
	hide : ( `Ext.Component this` ) Fires after the component is hidden. Fires after the component is hidden. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	invalid : ( `Ext.form.Field this`, `String msg` ) Fires after the field has been marked as invalid. Fires after the field has been marked as invalid. Listeners will be called with the following arguments: `this` : Ext.form.Field `msg` : String The validation message	Field
	move : ( `Ext.Component this`, `Number x`, `Number y` ) Fires after the component is moved. Fires after the component is moved. Listeners will be called with the following arguments: `this` : Ext.Component `x` : Number The new x position `y` : Number The new y position	BoxComponent
	render : ( `Ext.Component this` ) Fires after the component is rendered. Fires after the component is rendered. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	resize : ( `Ext.Component this`, `Number adjWidth`, `Number adjHeight`, `Number rawWidth`, `Number rawHeight` ) Fires after the component is resized. Fires after the component is resized. Listeners will be called with the following arguments: `this` : Ext.Component `adjWidth` : Number The box-adjusted width that was set `adjHeight` : Number The box-adjusted height that was set `rawWidth` : Number The width that was originally specified `rawHeight` : Number The height that was originally specified	BoxComponent
	show : ( `Ext.Component this` ) Fires after the component is shown. Fires after the component is shown. Listeners will be called with the following arguments: `this` : Ext.Component	Component
	specialkey : ( `Ext.form.Field this`, `Ext.EventObject e` ) Fires when any key related to navigation (arrows, tab, enter, esc, etc.) is pressed. You can check Ext.EventObject.g... 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. Listeners will be called with the following arguments: `this` : Ext.form.Field `e` : Ext.EventObject The event object	Field
	staterestore : ( `Ext.Component this`, `Object state` ) Fires after the state of the component is restored. Fires after the state of the component is restored. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values	Component
	statesave : ( `Ext.Component this`, `Object state` ) Fires after the state of the component is saved to the configured state provider. Fires after the state of the component is saved to the configured state provider. Listeners will be called with the following arguments: `this` : Ext.Component `state` : Object The hash of state values	Component
	valid : ( `Ext.form.Field this` ) Fires after the field has been validated with no errors. Fires after the field has been validated with no errors. Listeners will be called with the following arguments: `this` : Ext.form.Field	Field