Configuration

An object defining configuration options for the Popover widget.

animation

An object defining the animation options of the widget.

Type: Object
Default Value: { show: { type: 'fade', from: 0, to: 1 }, hide: { type: 'fade', to: 0 } }

Show Example:
AngularJS
Knockout
jQuery

buttons

Deprecated

Use the toolbarItems option instead.

Specifies items displayed on the top or bottom toolbar of the popup window.

Type: Array

closeOnBackButton

A Boolean value specifying whether or not the widget is closed if a user presses the Back hardware button.

Type: Boolean
Default Value: true

closeOnOutsideClick

A Boolean value specifying whether or not the widget is closed if a user clicks outside of the popover window and outside the target element.

Type: Boolean| function
Function parameters:
event: jQuery.Event
Holds the jQuery event that caused widget closing.
Return Value: Boolean
The required option value.
Default Value: true

The function passed to this option enables you to specify a custom condition for widget closing. For instance, you can prevent closing until a user clicks a certain element.

JavaScript
var widgetOptions = {
    // ...
    closeOnOutsideClick: function(e) {
        return e.target === $("#someElement").get()[0];
    }
}

contentTemplate

A template to be used for rendering widget content.

Type: template
Function parameters:
contentElement: jQuery
The jQuery object of the widget content element.
Return Value: String|jQuery
A template name or a template container.
Default Value: 'content'

This option enables you to render widget contents depending on field values of the bound data model.

HTML
<div data-options="dxTemplate: { name:'myContent' }">
    <h1 data-bind="text: title"></h1>
    <p>Full name: <span data-bind="text: fullName"></span></p>
</div>

NOTE: A binding context of a content template is the bound view model. So, you can bind template elements to the view model's fields directly (see the code above). To access another binding context within a content template, use the Knockout/AngularJS binding variables.

See Also
Show Example:
AngularJS
Knockout
jQuery

deferRendering

Specifies whether widget content is rendered when the widget is shown or when rendering the widget.

Type: Boolean
Default Value: true

If this option is set to true, widget content is rendered when showing the widget. Otherwise, widget content is rendered when rendering the widget.

disabled

A Boolean value specifying whether or not the widget can respond to user interaction.

Type: Boolean
Default Value: false

Create an observable variable and assign it to this option to specify the availability of the widget at runtime.

NOTE: For embedded components, the disabled option makes sense only if these components are DevExtreme widgets. In case you want to disable third-party controls, provide a native way to disable interaction. For example, for HTML elements you can use disabled attribute.

elementAttr

Specifies the attributes to be attached to the widget's root element.

Type: Object
Default Value: {}

When you configure this option using a server-side wrapper, pass a dictionary as shown in the following code.

@(Html.DevExtreme()
    // other widget options
    // ...
    .ElementAttr(new Dictionary<string, object>() {
        { "id", "elementId" },
        { "class", "class-name" },
        // ...
    })
)

height

Specifies the height of the widget.

Type: Number|String| function
Return Value: Number|String
The widget height.
Default Value: 'auto'

The option can hold a value of the following types:

  • number
    The height of the widget in pixels

  • string
    A CSS measurement of the widget height (e.g., "55px", "80%", "auto" and "inherit")

  • function
    A function returning the widget height (e.g., height:function(){ return baseHeight - 10 + "%"; })

hideEvent

Specifies options of popover hiding.

Type: Object|String
Default Value: undefined

If you assign only a string that specifies event names on which the widget is hidden, the widget will not apply any delay.

JavaScript
hideEvent: 'dxhoverend'

hint

Specifies the text of the hint displayed for the widget.

Type: String
Default Value: undefined

hoverStateEnabled

A Boolean value specifying whether or not the widget changes its state when being hovered by an end user.

Type: Boolean
Default Value: false

maxHeight

Specifies the maximum height the widget can reach while resizing.

Type: Number|String| function
Return Value: Number|String
The maximum height value.
Default Value: null

The option can hold a value of the following types.

  • numeric - the height in pixels
  • string - a CSS measurement of the height (e.g., "55px", "80%", "auto" and "inherit")
  • function - the function returning the height (e.g., width:function(){ return baseWidth - 10 + "%"; })

maxWidth

Specifies the maximum width the widget can reach while resizing.

Type: Number|String| function
Return Value: Number|String
The maximum width value.
Default Value: null

The option can hold a value of the following types.

  • numeric - the width in pixels
  • string - a CSS measurement of the width (e.g., "55px", "80%", "auto" and "inherit")
  • function - the function returning the width (e.g., width:function(){ return baseWidth - 10 + "%"; })

minHeight

Specifies the minimum height the widget can reach while resizing.

Type: Number|String| function
Return Value: Number|String
The minimum height value.
Default Value: null

The option can hold a value of the following types.

  • numeric - the height in pixels
  • string - a CSS measurement of the height (e.g., "55px", "80%", "auto" and "inherit")
  • function - the function returning the height (e.g., width:function(){ return baseWidth - 10 + "%"; })

minWidth

Specifies the minimum width the widget can reach while resizing.

Type: Number|String| function
Return Value: Number|String
The minimum width value.
Default Value: null

The option can hold a value of the following types.

  • numeric - the width in pixels
  • string - a CSS measurement of the width (e.g., "55px", "80%", "auto" and "inherit")
  • function - the function returning the width (e.g., width:function(){ return baseWidth - 10 + "%"; })

onContentReady

A handler for the contentReady event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action when widget content is ready.

onDisposing

A handler for the disposing event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action when the widget is being removed.

NOTE: The function assigned to this option is executed only if the widget is removed using the remove(), empty(), or html() jQuery methods.

onHidden

A handler for the hidden event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action after the widget is hidden.

Show Example:
AngularJS
Knockout
jQuery

onHiding

A handler for the hiding event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
cancel: Boolean
Indicates whether to cancel hiding the overlay.
Default Value: null

Assign a function to perform a custom action before hiding the widget.

Show Example:
AngularJS
Knockout
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onInitialized

A handler for the initialized event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
Default Value: null

Assign a function to perform a custom action when the widget is initialized.

onOptionChanged

A handler for the optionChanged event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
name: String
Specifies the name of the option whose value is changed.
fullName: String
Specifies a full name of the option whose value is changed. The full name is formed by concatenating the names of the options that are presented in the hierarchy of the given option. The names are delimited by commas.
value: any
Specifies a new value for the option.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action after an option of the component is changed.

onShowing

A handler for the showing event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action before showing the widget.

Show Example:
AngularJS
Knockout
jQuery

onShown

A handler for the shown event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
component: Object
Provides access to the widget instance.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action after the widget is shown.

Show Example:
AngularJS
Knockout
jQuery

onTitleRendered

A handler for the titleRendered event.

Type: function
Function parameters:
e: Object
Provides function parameters.
Object structure:
titleElement: jQuery
The HTML element of the item title.
element: jQuery
An HTML element of the widget.
model: Object
Provides access to the data that is available for binding against the element. Available only in the Knockout approach.
Default Value: null

Assign a function to perform a custom action after a collection item title is rendered.

position

An object defining widget positioning options.

Default Value: 'bottom'
Accepted Values: 'top' | 'bottom' | 'left' | 'right'

Besides the position configuration object, the option can take on the following string values, which are shortcuts for the corresponding position configuration.

  • 'top' - places the popover over the target element
  • 'bottom' - places the popover under the target element
  • 'left' - places the popover to the left of the target element
  • 'right' - places the popover to the right of the target element

NOTE: To specify the element against which the widget will be positioned, use the target option instead of the of field of the position object. If both target and of are specified, target will be used.

Show Example:
AngularJS
Knockout
jQuery

rtlEnabled

Specifies whether or not the current component supports a right-to-left representation.

Type: Boolean
Default Value: false

If you need to switch the display of this DevExtreme component to right-to-left, enable a specifically designed configuration option - rtlEnabled. When this option is set to true, the text flows from right to left, and the layout the component's elements is reversed. To switch the entire application/site to a right-to-left representation, use the static DevExpress.rtlEnabled field.

shading

A Boolean value specifying whether or not the main screen is inactive while the widget is active.

Type: Boolean
Default Value: false

Show Example:
AngularJS
Knockout
jQuery

shadingColor

Specifies the shading color.

Type: String
Default Value: ''

This option makes sense only if the shading option is set to true.

showCloseButton

Specifies whether or not the widget displays the Close button.

Type: Boolean
Default Value: false
Default for desktop: true

NOTE: The option makes sense only if the showTitle option is set to true.

showEvent

Specifies options for displaying the widget.

Type: Object|String
Default Value: undefined

If you assign only a string that specifies event names on which the widget is shown, the widget will not apply any delay.

JavaScript
showEvent: 'dxclick'

showTitle

A Boolean value specifying whether or not to display the title in the overlay window.

Type: Boolean
Default Value: false

target

The target element associated with a popover.

Specify this option to indicate the element for which the popover will be invoked. This option can take on one of the following values.

JavaScript
//CSS selector
target: '#targetElement';

//jQuery wrapper
target: $('#targetElement');

//DOM element
target: document.getElementById('targetElement');

To align the popover near this element, use the position option.

Show Example:
AngularJS
Knockout
jQuery

title

The title in the overlay window.

Type: String
Default Value: ''

NOTE: If the title option is specified, the titleTemplate option value is ignored.

titleTemplate

A template to be used for rendering the widget title.

Type: template
Function parameters:
titleElement: jQuery
An HTML element containing the rendered title.
Return Value: String|DOM Node|jQuery
A template name or a template container.
Default Value: 'title'

This option enables you to render the widget title depending on field values of the bound data model.

HTML
<div data-options="dxTemplate: { name:'myTitle' }">
    <h3><span data-bind="text: title"></span> info</h3>
</div>

NOTE: A binding context of a title template is the bound view model. So, you can bind template elements to the view model's fields directly (see the code above). To access another binding context within a title template, use the Knockout/AngularJS binding variables.

NOTE: The titleTemplate option makes sense if the title option is undefined.

toolbarItems[]

Specifies items displayed on the top or bottom toolbar of the popup window.

Type: Array

visible

A Boolean value specifying whether or not the widget is visible.

Type: Boolean
Default Value: false

You can show and hide the widget by changing the value of an observable variable passed to this option.

Show Example:
AngularJS
Knockout
jQuery

width

Specifies the width of the widget.

Type: Number|String| function
Return Value: Number|String
The widget width.
Default Value: 'auto'

The option can hold a value of the following types.

  • numeric - the widget width in pixels
  • string - a CSS measurement of the widget width (e.g., "55px", "80%", "auto" and "inherit")
  • function - the function returning the widget width (e.g., width:function(){ return baseWidth - 10 + "%"; })