## Dialog Widget version added: 1.0

Description: Open content in an interactive overlay.

## QuickNavExamples

A dialog is a floating window that contains a title bar and a content area. The dialog window can be moved, resized and closed with the 'x' icon by default.

If the content length exceeds the maximum height, a scrollbar will automatically appear.

A bottom button bar and semi-transparent modal overlay layer are common options that can be added.

### Focus

Upon opening a dialog, focus is automatically moved to the first item that matches the following:

1. The first element within the dialog with the `autofocus` attribute
2. The first `:tabbable` element within the dialog's content
3. The first `:tabbable` element within the dialog's buttonpane
4. The dialog's close button
5. The dialog itself

While open, the dialog widget ensures that tabbing cycles focus between elements within the dialog itself, not elements outside of it. Modal dialogs additionally prevent mouse users from clicking on elements outside of the dialog.

Upon closing a dialog, focus is automatically returned to the element that had focus when the dialog was opened.

### Hiding the close button

In some cases, you may want to hide the close button, for instance, if you have a close button in the button pane. The best way to accomplish this is via CSS. As an example, you can define a simple rule, such as:

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    .no-close .ui-dialog-titlebar-close {  display: none;}

Then, you can simply add the `no-close` class to any dialog in order to hide its close button:

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    $( "#dialog" ).dialog({  dialogClass: "no-close",  buttons: [    {      text: "OK",      click: function() {        $( this ).dialog( "close" );      }    }  ]});

### Theming

The dialog widget uses the jQuery UI CSS framework to style its look and feel. If dialog specific styling is needed, the following CSS class names can be used:

- `ui-dialog`: The outer container of the dialog.
  - `ui-dialog-titlebar`: The title bar containing the dialog's title and close button.
    - `ui-dialog-title`: The container around the textual title of the dialog.
    - `ui-dialog-titlebar-close`: The dialog's close button.
  - `ui-dialog-content`: The container around the dialog's content. This is also the element the widget was instantiated with.
  - `ui-dialog-buttonpane`: The pane that contains the dialog's buttons. This will only be present if the `buttons` option is set.
    - `ui-dialog-buttonset`: The container around the buttons themselves.

Additionally, when the `modal` option is set, an element with a `ui-widget-overlay` class name is appended to the `<body>`.

### Dependencies

- UI Core
- Widget Factory
- Position
- Button
- Draggable (optional; for use with the `draggable` option)
- Resizable (optional; for use with the `resizable` option)
- Effects Core (optional; for use with the `show` and `hide` options)

### Additional Notes:

- This widget requires some functional CSS, otherwise it won't work. If you build a custom theme, use the widget's specific CSS file as a starting point.

## Options

### appendToType: Selector

Default: `"body"`

Which element the dialog (and overlay, if modal) should be appended to.

Note: The `appendTo` option should not be changed while the dialog is open.
(version added: 1.10.0)
Code examples:

Initialize the dialog with the `appendTo` option specified:

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    $( ".selector" ).dialog({ appendTo: "#someElem" });

Get or set the `appendTo` option, after initialization:

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    // gettervar appendTo = $( ".selector" ).dialog( "option", "appendTo" ); // setter$( ".selector" ).dialog( "option", "appendTo", "#someElem" );

### autoOpenType: Boolean

Default: `true`
If set to `true`, the dialog will automatically open upon initialization. If `false`, the dialog will stay hidden until the `open()` method is called.
Code examples:

Initialize the dialog with the `autoOpen` option specified:

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    $( ".selector" ).dialog({ autoOpen: false });

Get or set the `autoOpen` option, after initialization:

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    // gettervar autoOpen = $( ".selector" ).dialog( "option", "autoOpen" ); // setter$( ".selector" ).dialog( "option", "autoOpen", false );

### buttonsType: Object or Array

Default: `{}`
Specifies which buttons should be displayed on the dialog. The context of the callback is the dialog element; if you need access to the button, it is available as the target of the event object.
Multiple types supported:

- Object: The keys are the button labels and the values are the callbacks for when the associated button is clicked.
- Array: Each element of the array must be an object defining the attributes, properties, and event handlers to set on the button.

Code examples:

Initialize the dialog with the `buttons` option specified:

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    $( ".selector" ).dialog({ buttons: [ { text: "Ok", click: function() { $( this ).dialog( "close" ); } } ] });

Get or set the `buttons` option, after initialization:

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    // gettervar buttons = $( ".selector" ).dialog( "option", "buttons" ); // setter$( ".selector" ).dialog( "option", "buttons", [ { text: "Ok", click: function() { $( this ).dialog( "close" ); } } ] );

### closeOnEscapeType: Boolean

Default: `true`
Specifies whether the dialog should close when it has focus and the user presses the escape (ESC) key.
Code examples:

Initialize the dialog with the `closeOnEscape` option specified:

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    $( ".selector" ).dialog({ closeOnEscape: false });

Get or set the `closeOnEscape` option, after initialization:

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    // gettervar closeOnEscape = $( ".selector" ).dialog( "option", "closeOnEscape" ); // setter$( ".selector" ).dialog( "option", "closeOnEscape", false );

### closeTextType: String

Default: `"close"`
Specifies the text for the close button. Note that the close text is visibly hidden when using a standard theme.
Code examples:

Initialize the dialog with the `closeText` option specified:

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    $( ".selector" ).dialog({ closeText: "hide" });

Get or set the `closeText` option, after initialization:

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    // gettervar closeText = $( ".selector" ).dialog( "option", "closeText" ); // setter$( ".selector" ).dialog( "option", "closeText", "hide" );

### dialogClassType: String

Default: `""`
The specified class name(s) will be added to the dialog, for additional theming.
Code examples:

Initialize the dialog with the `dialogClass` option specified:

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    $( ".selector" ).dialog({ dialogClass: "alert" });

Get or set the `dialogClass` option, after initialization:

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    // gettervar dialogClass = $( ".selector" ).dialog( "option", "dialogClass" ); // setter$( ".selector" ).dialog( "option", "dialogClass", "alert" );

### draggableType: Boolean

Default: `true`
If set to `true`, the dialog will be draggable by the title bar. Requires the jQuery UI Draggable widget to be included.
Code examples:

Initialize the dialog with the `draggable` option specified:

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    $( ".selector" ).dialog({ draggable: false });

Get or set the `draggable` option, after initialization:

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    // gettervar draggable = $( ".selector" ).dialog( "option", "draggable" ); // setter$( ".selector" ).dialog( "option", "draggable", false );

### heightType: Number or String

Default: `"auto"`
The height of the dialog.
Multiple types supported:

- Number: The height in pixels.
- String: The only supported string value is `"auto"` which will allow the dialog height to adjust based on its content.

Code examples:

Initialize the dialog with the `height` option specified:

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    $( ".selector" ).dialog({ height: 400 });

Get or set the `height` option, after initialization:

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    // gettervar height = $( ".selector" ).dialog( "option", "height" ); // setter$( ".selector" ).dialog( "option", "height", 400 );

### hideType: Boolean or Number or String or Object

Default: `null`
If and how to animate the hiding of the dialog.
Multiple types supported:

- Boolean: When set to `false`, no animation will be used and the dialog will be hidden immediately. When set to `true`, the dialog will fade out with the default duration and the default easing.
- Number: The dialog will fade out with the specified duration and the default easing.
- String: The dialog will be hidden using the specified effect. The value can either be the name of a built-in jQuery animation method, such as `"slideUp"`, or the name of a jQuery UI effect, such as `"fold"`. In either case the effect will be used with the default duration and the default easing.
- Object: If the value is an object, then `effect`, `delay`, `duration`, and `easing` properties may be provided. If the `effect` property contains the name of a jQuery method, then that method will be used; otherwise it is assumed to be the name of a jQuery UI effect. When using a jQuery UI effect that supports additional settings, you may include those settings in the object and they will be passed to the effect. If `duration` or `easing` is omitted, then the default values will be used. If `effect` is omitted, then `"fadeOut"` will be used. If `delay` is omitted, then no delay is used.

Code examples:

Initialize the dialog with the `hide` option specified:

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    $( ".selector" ).dialog({ hide: { effect: "explode", duration: 1000 } });

Get or set the `hide` option, after initialization:

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    // gettervar hide = $( ".selector" ).dialog( "option", "hide" ); // setter$( ".selector" ).dialog( "option", "hide", { effect: "explode", duration: 1000 } );

### maxHeightType: Number

Default: `false`
The maximum height to which the dialog can be resized, in pixels.
Code examples:

Initialize the dialog with the `maxHeight` option specified:

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    $( ".selector" ).dialog({ maxHeight: 600 });

Get or set the `maxHeight` option, after initialization:

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    // gettervar maxHeight = $( ".selector" ).dialog( "option", "maxHeight" ); // setter$( ".selector" ).dialog( "option", "maxHeight", 600 );

### maxWidthType: Number

Default: `false`
The maximum width to which the dialog can be resized, in pixels.
Code examples:

Initialize the dialog with the `maxWidth` option specified:

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    $( ".selector" ).dialog({ maxWidth: 600 });

Get or set the `maxWidth` option, after initialization:

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    // gettervar maxWidth = $( ".selector" ).dialog( "option", "maxWidth" ); // setter$( ".selector" ).dialog( "option", "maxWidth", 600 );

### minHeightType: Number

Default: `150`
The minimum height to which the dialog can be resized, in pixels.
Code examples:

Initialize the dialog with the `minHeight` option specified:

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    $( ".selector" ).dialog({ minHeight: 200 });

Get or set the `minHeight` option, after initialization:

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    // gettervar minHeight = $( ".selector" ).dialog( "option", "minHeight" ); // setter$( ".selector" ).dialog( "option", "minHeight", 200 );

### minWidthType: Number

Default: `150`
The minimum width to which the dialog can be resized, in pixels.
Code examples:

Initialize the dialog with the `minWidth` option specified:

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    $( ".selector" ).dialog({ minWidth: 200 });

Get or set the `minWidth` option, after initialization:

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    // gettervar minWidth = $( ".selector" ).dialog( "option", "minWidth" ); // setter$( ".selector" ).dialog( "option", "minWidth", 200 );

### modalType: Boolean

Default: `false`
If set to `true`, the dialog will have modal behavior; other items on the page will be disabled, i.e., cannot be interacted with. Modal dialogs create an overlay below the dialog but above other page elements.
Code examples:

Initialize the dialog with the `modal` option specified:

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    $( ".selector" ).dialog({ modal: true });

Get or set the `modal` option, after initialization:

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    // gettervar modal = $( ".selector" ).dialog( "option", "modal" ); // setter$( ".selector" ).dialog( "option", "modal", true );

### positionType: Object or String or Array

Default: `{ my: "center", at: "center", of: window }`

Specifies where the dialog should be displayed. The dialog will handle collisions such that as much of the dialog is visible as possible.

Note: The `String` and `Array` forms are deprecated.

Multiple types supported:

- Object: Identifies the position of the dialog when opened. The `of` option defaults to the window, but you can specify another element to position against. You can refer to the jQuery UI Position utility for more details about the various options.
- String: A string representing the position within the viewport. Possible values: `"center"`, `"left"`, `"right"`, `"top"`, `"bottom"`.
- Array: An array containing an x, y coordinate pair in pixel offset from the top left corner of the viewport or the name of a possible string value.

Code examples:

Initialize the dialog with the `position` option specified:

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    $( ".selector" ).dialog({ position: { my: "left top", at: "left bottom", of: button } });

Get or set the `position` option, after initialization:

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    // gettervar position = $( ".selector" ).dialog( "option", "position" ); // setter$( ".selector" ).dialog( "option", "position", { my: "left top", at: "left bottom", of: button } );

### resizableType: Boolean

Default: `true`
If set to `true`, the dialog will be resizable. Requires the jQuery UI Resizable widget to be included.
Code examples:

Initialize the dialog with the `resizable` option specified:

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    $( ".selector" ).dialog({ resizable: false });

Get or set the `resizable` option, after initialization:

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    // gettervar resizable = $( ".selector" ).dialog( "option", "resizable" ); // setter$( ".selector" ).dialog( "option", "resizable", false );

### showType: Boolean or Number or String or Object

Default: `null`
If and how to animate the showing of the dialog.
Multiple types supported:

- Boolean: When set to `false`, no animation will be used and the dialog will be shown immediately. When set to `true`, the dialog will fade in with the default duration and the default easing.
- Number: The dialog will fade in with the specified duration and the default easing.
- String: The dialog will be shown using the specified effect. The value can either be the name of a built-in jQuery animation method, such as `"slideDown"`, or the name of a jQuery UI effect, such as `"fold"`. In either case the effect will be used with the default duration and the default easing.
- Object: If the value is an object, then `effect`, `delay`, `duration`, and `easing` properties may be provided. If the `effect` property contains the name of a jQuery method, then that method will be used; otherwise it is assumed to be the name of a jQuery UI effect. When using a jQuery UI effect that supports additional settings, you may include those settings in the object and they will be passed to the effect. If `duration` or `easing` is omitted, then the default values will be used. If `effect` is omitted, then `"fadeIn"` will be used. If `delay` is omitted, then no delay is used.

Code examples:

Initialize the dialog with the `show` option specified:

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    $( ".selector" ).dialog({ show: { effect: "blind", duration: 800 } });

Get or set the `show` option, after initialization:

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    // gettervar show = $( ".selector" ).dialog( "option", "show" ); // setter$( ".selector" ).dialog( "option", "show", { effect: "blind", duration: 800 } );

### titleType: String

Default: `null`
Specifies the title of the dialog. If the value is `null`, the `title` attribute on the dialog source element will be used.
Code examples:

Initialize the dialog with the `title` option specified:

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    $( ".selector" ).dialog({ title: "Dialog Title" });

Get or set the `title` option, after initialization:

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    // gettervar title = $( ".selector" ).dialog( "option", "title" ); // setter$( ".selector" ).dialog( "option", "title", "Dialog Title" );

### widthType: Number

Default: `300`
The width of the dialog, in pixels.
Code examples:

Initialize the dialog with the `width` option specified:

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    $( ".selector" ).dialog({ width: 500 });

Get or set the `width` option, after initialization:

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    // gettervar width = $( ".selector" ).dialog( "option", "width" ); // setter$( ".selector" ).dialog( "option", "width", 500 );

## Methods

### close()Returns: jQuery (plugin only)

Closes the dialog.

- This method does not accept any arguments.

Code examples:

Invoke the close method:

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    $( ".selector" ).dialog( "close" );

### destroy()Returns: jQuery (plugin only)

Removes the dialog functionality completely. This will return the element back to its pre-init state.

- This method does not accept any arguments.

Code examples:

Invoke the destroy method:

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    $( ".selector" ).dialog( "destroy" );

### isOpen()Returns: Boolean

Whether the dialog is currently open.

- This method does not accept any arguments.

Code examples:

Invoke the isOpen method:

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    var isOpen = $( ".selector" ).dialog( "isOpen" );

### moveToTop()Returns: jQuery (plugin only)

Moves the dialog to the top of the dialog stack.

- This method does not accept any arguments.

Code examples:

Invoke the moveToTop method:

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    $( ".selector" ).dialog( "moveToTop" );

### open()Returns: jQuery (plugin only)

Opens the dialog.

- This method does not accept any arguments.

Code examples:

Invoke the open method:

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    $( ".selector" ).dialog( "open" );

### option( optionName )Returns: Object

Gets the value currently associated with the specified `optionName`.

- optionName
  Type: String
  The name of the option to get.

Code examples:

Invoke the method:

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    var isDisabled = $( ".selector" ).dialog( "option", "disabled" );

### option()Returns: PlainObject

Gets an object containing key/value pairs representing the current dialog options hash.

- This signature does not accept any arguments.

Code examples:

Invoke the method:

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    var options = $( ".selector" ).dialog( "option" );

### option( optionName, value )Returns: jQuery (plugin only)

Sets the value of the dialog option associated with the specified `optionName`.

- optionName
  Type: String
  The name of the option to set.
- value
  Type: Object
  A value to set for the option.

Code examples:

Invoke the method:

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    $( ".selector" ).dialog( "option", "disabled", true );

### option( options )Returns: jQuery (plugin only)

Sets one or more options for the dialog.

- options
  Type: Object
  A map of option-value pairs to set.

Code examples:

Invoke the method:

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    $( ".selector" ).dialog( "option", { disabled: true } );

### widget()Returns: jQuery

Returns a `jQuery` object containing the generated wrapper.

- This method does not accept any arguments.

Code examples:

Invoke the widget method:

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    var widget = $( ".selector" ).dialog( "widget" );

## Extension Points

The dialog widget is built with the widget factory and can be extended. When extending widgets, you have the ability to override or add to the behavior of existing methods. The following methods are provided as extension points with the same API stability as the plugin methods listed above. For more information on widget extensions, see Extending Widgets with the Widget Factory.

### _allowInteraction( event )Returns: Boolean

Modal dialogs do not allow users to interact with elements behind the dialog. This can be problematic for elements that are not children of the dialog, but are absolutely positioned to appear as though they are. The `_allowInteraction()` method determines whether the user should be allowed to interact with a given target element; therefore, it can be used to whitelist elements that are not children of the dialog but you want users to be able to use.

- event
  Type: Event

Code examples:

Allow the Select2 plugin to be used within modal dialogs. The `_super()` call ensures elements within the dialog can still be interacted with.

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    _allowInteraction: function( event ) {  return !!$( event.target ).is( ".select2-input" ) || this._super( event );}

## Events

### beforeClose( event, ui )Type: `dialogbeforeclose`

Triggered when a dialog is about to close. If canceled, the dialog will not close.

- event
  Type: Event
- ui
  Type: Object

Note: The `ui` object is empty but included for consistency with other events.

Code examples:

Initialize the dialog with the beforeClose callback specified:

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    $( ".selector" ).dialog({  beforeClose: function( event, ui ) {}});

Bind an event listener to the dialogbeforeclose event:

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    $( ".selector" ).on( "dialogbeforeclose", function( event, ui ) {} );

### close( event, ui )Type: `dialogclose`

Triggered when the dialog is closed.

- event
  Type: Event
- ui
  Type: Object

Note: The `ui` object is empty but included for consistency with other events.

Code examples:

Initialize the dialog with the close callback specified:

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    $( ".selector" ).dialog({  close: function( event, ui ) {}});

Bind an event listener to the dialogclose event:

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    $( ".selector" ).on( "dialogclose", function( event, ui ) {} );

### create( event, ui )Type: `dialogcreate`

Triggered when the dialog is created.

- event
  Type: Event
- ui
  Type: Object

Note: The `ui` object is empty but included for consistency with other events.

Code examples:

Initialize the dialog with the create callback specified:

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    $( ".selector" ).dialog({  create: function( event, ui ) {}});

Bind an event listener to the dialogcreate event:

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    $( ".selector" ).on( "dialogcreate", function( event, ui ) {} );

### drag( event, ui )Type: `dialogdrag`

Triggered while the dialog is being dragged.

- event
  Type: Event
- ui
  Type: Object
  - position
    Type: Object
    The current CSS position of the dialog.
  - offset
    Type: Object
    The current offset position of the dialog.

Code examples:

Initialize the dialog with the drag callback specified:

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    $( ".selector" ).dialog({  drag: function( event, ui ) {}});

Bind an event listener to the dialogdrag event:

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    $( ".selector" ).on( "dialogdrag", function( event, ui ) {} );

### dragStart( event, ui )Type: `dialogdragstart`

Triggered when the user starts dragging the dialog.

- event
  Type: Event
- ui
  Type: Object
  - position
    Type: Object
    The current CSS position of the dialog.
  - offset
    Type: Object
    The current offset position of the dialog.

Code examples:

Initialize the dialog with the dragStart callback specified:

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    $( ".selector" ).dialog({  dragStart: function( event, ui ) {}});

Bind an event listener to the dialogdragstart event:

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    $( ".selector" ).on( "dialogdragstart", function( event, ui ) {} );

### dragStop( event, ui )Type: `dialogdragstop`

Triggered after the dialog has been dragged.

- event
  Type: Event
- ui
  Type: Object
  - position
    Type: Object
    The current CSS position of the dialog.
  - offset
    Type: Object
    The current offset position of the dialog.

Code examples:

Initialize the dialog with the dragStop callback specified:

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    $( ".selector" ).dialog({  dragStop: function( event, ui ) {}});

Bind an event listener to the dialogdragstop event:

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    $( ".selector" ).on( "dialogdragstop", function( event, ui ) {} );

### focus( event, ui )Type: `dialogfocus`

Triggered when the dialog gains focus.

- event
  Type: Event
- ui
  Type: Object

Note: The `ui` object is empty but included for consistency with other events.

Code examples:

Initialize the dialog with the focus callback specified:

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    $( ".selector" ).dialog({  focus: function( event, ui ) {}});

Bind an event listener to the dialogfocus event:

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    $( ".selector" ).on( "dialogfocus", function( event, ui ) {} );

### open( event, ui )Type: `dialogopen`

Triggered when the dialog is opened.

- event
  Type: Event
- ui
  Type: Object

Note: The `ui` object is empty but included for consistency with other events.

Code examples:

Initialize the dialog with the open callback specified:

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    $( ".selector" ).dialog({  open: function( event, ui ) {}});

Bind an event listener to the dialogopen event:

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    $( ".selector" ).on( "dialogopen", function( event, ui ) {} );

### resize( event, ui )Type: `dialogresize`

Triggered while the dialog is being resized.

- event
  Type: Event
- ui
  Type: Object
  - originalPosition
    Type: Object
    The CSS position of the dialog prior to being resized.
  - position
    Type: Object
    The current CSS position of the dialog.
  - originalSize
    Type: Object
    The size of the dialog prior to being resized.
  - size
    Type: Object
    The current size of the dialog.

Code examples:

Initialize the dialog with the resize callback specified:

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    $( ".selector" ).dialog({  resize: function( event, ui ) {}});

Bind an event listener to the dialogresize event:

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    $( ".selector" ).on( "dialogresize", function( event, ui ) {} );

### resizeStart( event, ui )Type: `dialogresizestart`

Triggered when the user starts resizing the dialog.

- event
  Type: Event
- ui
  Type: Object
  - originalPosition
    Type: Object
    The CSS position of the dialog prior to being resized.
  - position
    Type: Object
    The current CSS position of the dialog.
  - originalSize
    Type: Object
    The size of the dialog prior to being resized.
  - size
    Type: Object
    The current size of the dialog.

Code examples:

Initialize the dialog with the resizeStart callback specified:

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    $( ".selector" ).dialog({  resizeStart: function( event, ui ) {}});

Bind an event listener to the dialogresizestart event:

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    $( ".selector" ).on( "dialogresizestart", function( event, ui ) {} );

### resizeStop( event, ui )Type: `dialogresizestop`

Triggered after the dialog has been resized.

- event
  Type: Event
- ui
  Type: Object
  - originalPosition
    Type: Object
    The CSS position of the dialog prior to being resized.
  - position
    Type: Object
    The current CSS position of the dialog.
  - originalSize
    Type: Object
    The size of the dialog prior to being resized.
  - size
    Type: Object
    The current size of the dialog.

Code examples:

Initialize the dialog with the resizeStop callback specified:

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    $( ".selector" ).dialog({  resizeStop: function( event, ui ) {}});

Bind an event listener to the dialogresizestop event:

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    $( ".selector" ).on( "dialogresizestop", function( event, ui ) {} );

## Example:

#### A simple jQuery UI Dialog

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    <!doctype html><html lang="en"><head>  <meta charset="utf-8">  <title>dialog demo</title>  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">  <script src="//code.jquery.com/jquery-1.10.2.js"></script>  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script></head><body> <button id="opener">open the dialog</button><div id="dialog" title="Dialog Title">I'm a dialog</div> <script>$( "#dialog" ).dialog({ autoOpen: false });$( "#opener" ).click(function() {  $( "#dialog" ).dialog( "open" );});</script> </body></html>

#### Demo: