JavaScript/jQuery Popover Options

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

Set this object to null or undefined to disable animation.

closeOnOutsideClick

Specifies whether to close the UI component if a user clicks outside the popover window or outside the target element.

Type:

|

Function parameters:

event:

Event (jQuery or EventObject)

The event that caused UI component closing. It is a EventObject or a jQuery.Event when you use jQuery.

Return Value:

true if the UI component should be closed; otherwise false.

Default Value: true

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

jQuery

JavaScript

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

Angular

TypeScript

HTML

import { DxPopoverModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
    closeOnOutsideClick(e) {
        return e.target === document.getElementById("someElement");
    }
}
@NgModule({
     imports: [
         // ...
         DxPopoverModule
     ],
     // ...
 })

<dx-popover ...
    [closeOnOutsideClick]="closeOnOutsideClick">
</dx-popover>

Vue

App.vue

<template>
    <DxPopover ....
        :close-on-outside-click="closeOnOutsideClick">
    </DxPopover>
</template>

<script>
import 'devextreme/dist/css/dx.light.css';

import DxPopover from 'devextreme-vue/popover';

export default {
    components: {
        DxPopover
    },
    methods: {
        closeOnOutsideClick (e) {
            return e.target === document.getElementById("someElement");
        }
    }
}
</script>

React

App.js

import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import Popover from 'devextreme-react/popover';

const closeOnOutsideClick = (e) => {
    return e.target === document.getElementById("someElement");
};

export default function App() {
    return (
        <Popover ...
            closeOnOutsideClick={closeOnOutsideClick}>
        </Popover>
    );
}

The closeOnOutsideClick function is called when a user clicks the UI component or outside it.

container

Specifies the container in which to render the UI component.

Type:

|

Default Value: undefined

The UI component defines the default container on its initialization. This default container can be one of the following (if the element is absent, the component selects the next one): - color swatch container - .dx-viewport - body

contentTemplate

Specifies a custom template for the UI component content.

Type:

template

Template Data: undefined

Default Name: 'content'

deferRendering

Specifies whether to render the UI component's content when it is displayed. If false, the content is rendered immediately.

Type:

Default Value: true

disabled

Specifies whether the UI component responds to user interaction.

Type:

Default Value: false

elementAttr

Specifies the global attributes to be attached to the UI component's container element.

Type: any

Default Value: {}

jQuery

$(function(){
    $("#popoverContainer").dxPopover({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});

Angular

HTML

TypeScript

<dx-popover ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-popover>

import { DxPopoverModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxPopoverModule
    ],
    // ...
})

Vue

App.vue

<template>
    <DxPopover ...
        :element-attr="popoverAttributes">
    </DxPopover>
</template>

<script>
import DxPopover from 'devextreme-vue/popover';

export default {
    components: {
        DxPopover
    },
    data() {
        return {
            popoverAttributes: {
                id: 'elementId',
                class: 'class-name'
            }
        }
    }
}
</script>

React

App.js

import React from 'react';

import Popover from 'devextreme-react/popover';

class App extends React.Component {
    popoverAttributes = {
        id: 'elementId',
        class: 'class-name'
    }

    render() {
        return (
            <Popover ...
                elementAttr={this.popoverAttributes}>
            </Popover>
        );
    }
}
export default App;

height

Specifies the UI component's height.

Type:

|

|

Return Value:

|

The UI component height.

Default Value: 'auto'

Raised Events: onResize

This property accepts a value of one of the following types:

Number
The height in pixels.
String
A CSS-accepted measurement of height. For example, "55px", "80%", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
height: function() {
    return window.innerHeight / 1.5;
}
```

The Popover calculates its height relative to the window.

hideEvent

Specifies properties of popover hiding.

Type:

|

Default Value: undefined

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

JavaScript

hideEvent: "mouseleave"

hint

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

Type:

Default Value: undefined

hoverStateEnabled

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

Type:

Default Value: false

maxHeight

Specifies the maximum height the UI component can reach while resizing.

Type:

|

|

Return Value:

|

The maximum height.

Default Value: null

This property accepts a value of one of the following types:

Number
The height in pixels.
String
A CSS-accepted measurement of height. For example, "55px", "80%", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
height: function() {
    return window.innerHeight / 1.5;
}
```

maxWidth

Specifies the maximum width the UI component can reach while resizing.

Type:

|

|

Return Value:

|

The maximum width.

Default Value: null

This property accepts a value of one of the following types:

Number
The width in pixels.
String
A CSS-accepted measurement of width. For example, "55px", "80%", "auto", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
width: function() {
    return window.innerWidth / 1.5;
}
```

minHeight

Specifies the minimum height the UI component can reach while resizing.

Type:

|

|

Return Value:

|

The minimum height.

Default Value: null

This property accepts a value of one of the following types:

Number
The height in pixels.
String
A CSS-accepted measurement of height. For example, "55px", "80%", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
height: function() {
    return window.innerHeight / 1.5;
}
```

minWidth

Specifies the minimum width the UI component can reach while resizing.

Type:

|

|

Return Value:

|

The minimum width.

Default Value: null

This property accepts a value of one of the following types:

Number
The width in pixels.
String
A CSS-accepted measurement of width. For example, "55px", "80%", "auto", "inherit".
Function
A function returning either of the above. For example:
JavaScript
```
width: function() {
    return window.innerWidth / 1.5;
}
```

onContentReady

A function that is executed when the UI component's content is ready and each time the content is changed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The UI component's instance.

element

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

any

Model data. Available only when using Knockout.

Default Value: null

onDisposing

A function that is executed before the UI component is disposed of.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The UI component's instance.

element

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

any

Model data. Available only if you use Knockout.

Default Value: null

onHidden

A function that is executed after the UI component is hidden.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The UI component's instance.

element

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

any

Model data. Available only if Knockout is used.

Default Value: null

onHiding

A function that is executed before the UI component is hidden.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name	Type	Description
cancel	Boolean	Allows you to cancel overlay hiding.
component	Popover	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
model	any	Model data. Available only if Knockout is used.

Default Value: null

onInitialized

A function used in JavaScript frameworks to save the UI component instance.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The UI component's instance.

element

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

Default Value: null

onOptionChanged

A function that is executed after a UI component property is changed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name	Type	Description
model	any	Model data. Available only if you use Knockout.
fullName	String	The path to the modified property that includes all parent properties.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
component	Popover	The UI component's instance.
name	String	The modified property if it belongs to the first level. Otherwise, the first-level property it is nested into.
value	any	The modified property's new value.

Default Value: null

The following example shows how to subscribe to component property changes:

jQuery

index.js

$(function() {
    $("#popoverContainer").dxPopover({
        // ...
        onOptionChanged: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    });
});

Angular

app.component.html

app.component.ts

app.module.ts

<dx-popover ...
    (onOptionChanged)="handlePropertyChange($event)"> 
</dx-popover>

import { Component } from '@angular/core'; 

@Component({ 
    selector: 'app-root', 
    templateUrl: './app.component.html', 
    styleUrls: ['./app.component.css'] 
}) 

export class AppComponent { 
    // ...
    handlePropertyChange(e) {
        if(e.name === "changedProperty") { 
            // handle the property change here
        }
    }
}

import { BrowserModule } from '@angular/platform-browser'; 
import { NgModule } from '@angular/core'; 
import { AppComponent } from './app.component'; 
import { DxPopoverModule } from 'devextreme-angular'; 

@NgModule({ 
    declarations: [ 
        AppComponent 
    ], 
    imports: [ 
        BrowserModule, 
        DxPopoverModule 
    ], 
    providers: [ ], 
    bootstrap: [AppComponent] 
}) 

export class AppModule { }

Vue

App.vue

<template> 
    <DxPopover ...
        @option-changed="handlePropertyChange"
    />            
</template> 

<script>  
import 'devextreme/dist/css/dx.light.css'; 
import DxPopover from 'devextreme-vue/popover'; 

export default { 
    components: { 
        DxPopover
    }, 
    // ...
    methods: { 
        handlePropertyChange: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    } 
} 
</script>

React

App.js

import React from 'react';  
import 'devextreme/dist/css/dx.light.css'; 

import Popover from 'devextreme-react/popover'; 

const handlePropertyChange = (e) => {
    if(e.name === "changedProperty") {
        // handle the property change here
    }
}

export default function App() { 
    return ( 
        <Popover ...
            onOptionChanged={handlePropertyChange}
        />        
    ); 
}

onShowing

A function that is executed before the UI component is displayed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The UI component's instance.

element

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

any

Model data. Available only if Knockout is used.

Default Value: null

onShown

A function that is executed after the UI component is displayed.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name

Type

Description

component

The UI component's instance.

element

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model

any

Model data. Available only if Knockout is used.

Default Value: null

onTitleRendered

A function that is executed when the UI component's title is rendered.

Type:

Function parameters:

e:

Information about the event.

Object structure:

Name	Type	Description
component	Popover	The UI component's instance.
element	HTMLElement \| jQuery	The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.
model	any	Model data. Available only if Knockout is used.
titleElement	HTMLElement \| jQuery	The title's container. It is an HTML Element or a jQuery Element when you use jQuery.

Default Value: null

position

An object defining UI component positioning properties.

Type:

|

PositionConfig

Default Value: 'bottom'

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

Raised Events: onPositioned

You can use the position.of property and the Popover's target property to specify the element against which the UI component will be positioned. If you set both these properties, position.of takes precedence.

Besides the position configuration object, the property 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

rtlEnabled

Switches the UI component to a right-to-left representation.

Type:

DataGrid Demo Navigation UI Demo Editors Demo

Default Value: false

When this property is set to true, the UI component text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.

JavaScript

DevExpress.config({
    rtlEnabled: true
});

shading

Specifies whether to shade the background when the UI component is active.

Type:

Default Value: false

Shading always applies to the window.

shadingColor

Specifies the shading color. Applies only if shading is enabled.

Type:

Default Value: ''

This property supports the following colors:

Hexadecimal colors
RGB colors
RGBA colors
Predefined/cross-browser color names
Predefined SVG colors
Paint server address

showCloseButton

Specifies whether or not the UI component displays the Close button.

Type:

Default Value: false, true (desktop)

NOTE

The property makes sense only if the showTitle property is set to true.

showEvent

Specifies properties for displaying the UI component.

Type:

|

Default Value: undefined

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

JavaScript

showEvent: "mouseenter"

showTitle

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

Type:

Default Value: false

View Demo

target

Specifies the element against which to position the Popover.

Type:

|

Default Value: Window

This property accepts one of the following values:

A CSS selector, or a jQuery selector if you use jQuery
```
target: '#targetElement';
```
A jQuery wrapper
```
target: $('#targetElement');
```

A DOM element

target: document.getElementById('#targetElement');

To change the Popover position against this element, use the position property.

This property also specifies a target element for the Popover showEvent and hideEvent.

title

The title in the overlay window.

Type:

Default Value: ''

View Demo

NOTE

If the title property is specified, the titleTemplate property value is ignored.

titleTemplate

Specifies a custom template for the UI component title. Does not apply if the title is defined.

Type:

template

Template Data: undefined

Default Name: 'title'

toolbarItems[]

Configures toolbar items.

Type:

Array<Object>

In the following code, two items are defined on the toolbar: one is plain text, another is the Button UI component:

jQuery

index.js

index.html

$(function() {
    $("#popoverContainer").dxPopover({
        // ...
        toolbarItems: [{
            text: "Title",
            location: "before"
        }, {
            widget: "dxButton",
            location: "after",
            options: { 
                text: "Refresh", 
                onClick: function(e) { /* ... */ }
            }
        }]
    });
});

<div id="popoverContainer">
    <p>Popover content</p>
</div>

Angular

app.component.html

app.component.ts

app.module.ts

<dx-popover ... >
    <div *dxTemplate="let data of 'content'">
        <p>Popover content</p>
    </div>
    <dxi-toolbar-item
        text="Title"
        location="before">
    </dxi-toolbar-item>
    <dxi-toolbar-item
        widget="dxButton"
        location="after"
        [options]="{
            text: 'Refresh',
            onClick: refresh
        }">
    </dxi-toolbar-item>
</dx-popover>

import { Component } from '@angular/core';

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    refresh () { /* ... */ }
}

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxPopoverModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxPopoverModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

ASP.NET MVC Controls

Index.cshtml

@(Html.DevExtreme().Popover()
    <!-- ... -->
    .ContentTemplate(@<text>
        <p>Popover content</p>
    </text>)
    .ToolbarItems(ti => {
        ti.Add()
            .Text("Title")
            .Location(ToolbarItemLocation.Before);
        ti.Add()
            .Widget(w => w.Button()
                .Text("Refresh")
                .OnClick("refresh"))
            .Location(ToolbarItemLocation.After);
    }
)

<script type="text/javascript">
    function refresh() { /* ... */ }
</script>

Vue

App.vue

<template> 
    <DxPopover ... >
        <p>Popover content</p>
        <DxToolbarItem 
            text="Title" 
            location="before">
        </DxToolbarItem>
        <DxToolbarItem 
            widget="dxButton" 
            :options="buttonOptions" 
            location="after">
        </DxToolbarItem>
    </DxPopover>
</template>
<script>
import 'devextreme/dist/css/dx.light.css';

import DxPopover, { DxToolbarItem } from 'devextreme-vue/popover';

export default {
    components: {
        DxPopover
    },
    data() {
        return {
            buttonOptions: {
                text: 'Refresh',
                onClick: function(e) { /* ... */ }
            }
        }
    }
}
</script>

React

App.js

import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import { Popover, ToolbarItem } from 'devextreme-react/popover';

class App extends React.Component {
    constructor() {
        this.buttonOptions = {
            text: 'Refresh',
            onClick: function(e) { /* ... */ }
        };
    }
    render() {
        return (
            <Popover ... >
                <p>Popover Content</p>
                <ToolbarItem 
                    text="Title" 
                    location="before">
                </ToolbarItem>
                <ToolbarItem 
                    widget="dxButton" 
                    location="after" 
                    options={this.buttonOptions}>
                </ToolbarItem>
            </Popover>
        );
    }
}
export default App;

visible

A Boolean value specifying whether or not the UI component is visible.

Type:

Default Value: false

Raised Events: onShowing onHiding