Tooltip

The Tooltip widget displays a tooltip for a specified element on the page.

Included in: dx.mobile.js, dx.web.js, dx.viz-web.js, dx.all.js
Module: ui/tooltip
Export: default

You can create the widget using one of the following approaches.

jQuery
HTML
JavaScript
<div id="targetElement"></div>
<div id="tooltip">
    <p>Tooltip content</p>
</div>
$(function () {
    $("#tooltip").dxTooltip({
        target: '#targetElement',
        showEvent: 'dxhoverstart',
        hideEvent: 'dxhoverend'
    });
});
Angular
HTML
<div id="targetElement"></div>
<dx-tooltip
    target="#targetElement"
    showEvent="dxhoverstart"
    hideEvent="dxhoverend">
        <p>Tooltip content</p>
</dx-tooltip>
AngularJS
HTML
<div id="targetElement"></div>
<div dx-tooltip="{
    target: '#targetElement',
    showEvent: 'dxhoverstart',
    hideEvent: 'dxhoverend'
}">
    <p>Tooltip content</p>
</div>
Knockout
HTML
<div id="targetElement"></div>
<div data-bind="dxTooltip: {
    target: '#targetElement',
    showEvent: 'dxhoverstart',
    hideEvent: 'dxhoverend'
}">
    <p>Tooltip content</p>
</div>
ASP.NET MVC Controls
Razor C#
Razor VB
@(Html.DevExtreme().Tooltip()
    .ID("tooltip")
    .Target("#targetElement")
    .ShowEvent("dxhoverstart")
    .HideEvent("dxhoverend")
    .ContentTemplate(@<text>
        <p>Tooltip content</p>
    </text>)
)
<div id="targetElement"></div>
@Code
    Html.DevExtreme().Tooltip() _
        .ID("tooltip") _
        .Target("#targetElement") _
        .ShowEvent("dxhoverstart") _
        .HideEvent("dxhoverend") _
        .ContentTemplate(Sub()
            @<text>
                <p>Tooltip content</p>
            </text>
        End Sub).Render
End Code
<div id="targetElement"></div>

Note that DevExtreme widgets require you to link the jQuery library to your application. If you use the Knockout or AngularJS approach, the Knockout or AngularJS library is also required. For detailed information on linking these libraries to your project, refer to the topics in the Installation section.

View Demo Watch Video

See Also

Configuration

An object defining configuration options for the Tooltip widget.

Name Description
animation

Configures widget visibility animations. This object contains two fields: show and hide.

closeOnBackButton

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

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.

contentTemplate

A template to be used for rendering widget content.

deferRendering

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

disabled

Specifies whether the widget responds to user interaction.

elementAttr

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

height

Specifies the widget's height.

hideEvent

Specifies options of popover hiding.

hint

Specifies text for a hint that appears when a user pauses on the widget.

hoverStateEnabled

Specifies whether the widget changes its state when a user pauses on it.

maxHeight

Specifies the maximum height the widget can reach while resizing.

maxWidth

Specifies the maximum width the widget can reach while resizing.

minHeight

Specifies the minimum height the widget can reach while resizing.

minWidth

Specifies the minimum width the widget can reach while resizing.

onContentReady

A handler for the contentReady event. Executed when the widget's content is ready. This handler may be executed multiple times during the widget's lifetime depending on the number of times its content changes.

onDisposing

A handler for the disposing event. Executed when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.

onHidden

A handler for the hidden event.

onHiding

A handler for the hiding event.

onInitialized

A handler for the initialized event. Executed only once, after the widget is initialized.

onOptionChanged

A handler for the optionChanged event. Executed after an option of the widget is changed.

onShowing

A handler for the showing event.

onShown

A handler for the shown event.

position

An object defining widget positioning options.

rtlEnabled

Switches the widget to a right-to-left representation.

shading

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

shadingColor

Specifies the shading color.

showEvent

Specifies options for displaying the widget.

target

The target element associated with a popover.

visible

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

width

Specifies the widget's width.

Methods

This section describes members used to manipulate the widget.

Name Description
beginUpdate()

Prevents the widget from refreshing until the endUpdate() method is called.

content()

An HTML element of the widget.

defaultOptions(rule)

Specifies the device-dependent default configuration options for this component.

element()

Gets the root element of the widget.

endUpdate()

Refreshes the widget after a call of the beginUpdate() method.

hide()

Hides the widget.

instance()

Returns this widget's instance. Use it to access other methods of the widget.

off(eventName)

Detaches all event handlers from the specified event.

off(eventName, eventHandler)

Detaches a particular event handler from the specified event.

on(eventName, eventHandler)

Subscribes to a specified event.

on(events)

Subscribes to the specified events.

option()

Gets the widget's options.

option(optionName)

Gets a specific option value.

option(optionName, optionValue)

Assigns a new value to a specific option.

option(options)

Sets one or more options.

repaint()

Recalculates the widget's size and position without rerendering.

show()

Shows the widget.

show(target)

Displays the widget for the specified target element.

toggle(showing)

Toggles the visibility of the widget.

Events

This section describes events fired by this widget.

Name Description
contentReady

Raised when the widget's content is ready.

disposing

Raised when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.

hidden

Fires after the overlay is hidden.

hiding

Fires before hiding the overlay.

initialized

Raised only once, after the widget is initialized.

optionChanged

Raised after an option of the widget is changed.

showing

Fires before showing the overlay.

shown

Fires after the overlay is shown.

titleRendered

Fires after the widget title is rendered.

See Also