Popover Configuration

An object defining configuration options for the dxPopover widget.

animation

An object defining animation options of the widget.

Type: animation configuration

The option takes on the following object by default.

JavaScript
animationOptions = { 
    show: {
        type: "fade",
        from: 0,
        to: 1
    },
    hide: {
        type: "fade",
        to: 0
    }
}
Show Example:
jQuery
<div class="button" data-bind="dxButton: { text: 'Show popup', clickAction: showPopup }"></div>
<div class="dx-fieldset">
  <div class="dx-field">
    <div style="width: 70%" class="dx-field-label">Animation Type</div>
    <div style="width: 30%" class="dx-field-value" data-bind="dxLookup: {
      dataSource: animationTypes,
      value: animationType,
      valueChangeAction: typeChanged
    }"></div>
  </div>
</div>
<div id="myPopup" data-bind="dxPopover: { title: 'My dxPopover', visible: popupVisible, animation: animationConfig, target: '.button' }">
      <p>The popup text.</p>
      <div class="button" data-bind="dxButton: { text: 'Hide popup', clickAction: hidePopup }"></div>
</div>
animationTypes = [
  "fade",
  "pop",
  "slide"
];
popupVisible = ko.observable(false);
animationType = ko.observable(animationTypes[0]);
animationConfig = ko.observable({});
typeChanged = function () {
  switch (animationType()) {
    case "slide":
      animationConfig({
        show: { type: "slide", from: { opacity: 1, top: -$(window).height() }, to: { top: 0 } },
        hide: { type: "slide", from: { top: 0 }, to: { top: -$(window).height() } }
      });
      break;
    case "pop":
      animationConfig({
        show: { type: "pop", from: { opacity: 1, scale: 0 }, to: { scale: 1 } },
        hide: { type: "pop", from: { scale: 1 }, to: { scale: 0 } }
      });
      break;
    case "fade":
      animationConfig({
        show: { type: "fade", from: 0, to: 1 },
        hide: { type: "fade", from: 1, to: 0 }
      });
      break;
    default:
      animationConfig({});
  }
}
showPopup = function () {
    popupVisible(true);
};
hidePopup = function () {
  popupVisible(false);
};
body{
  text-align: center;
}
.button{
  margin: 10px;
}

contentReadyAction

An action performed when widget content is ready.

Type: String|function(e)
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.
Default Value: null

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

Alternatively, you can assign a URL to which the browser will navigate when widget content is ready.

contentTemplate

A template to be used for rendering the widget content.

Type: String|function|DOM Node|jQuery
Return Value: String|jQuery
A template name or a template container.
Default Value: "template"

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

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

The $data variable available within the template contains the data model object bound to the current view.

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.

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:

  • numeric - 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 + "%"; }).

hiddenAction

An action performed after the overlay is hidden.

Type: String|function(e)
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.
Default Value: null

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

Alternatively, you can assign a URL to which the browser will navigate after the overlay is hidden.

Show Example:
jQuery
<div class="button" data-bind="dxButton: { text: 'Show popup', clickAction: showPopup }"></div>
<div data-bind="dxPopover: { visible: popupVisible, hiddenAction: processHiding, target: '.button' }">
    <div data-options="dxTemplate:{ name: 'content' }">
        <div class="button" data-bind="dxButton: { text: 'Hide popup', clickAction: hidePopup }"></div>
        <p>The popup contents.</p>
    </div>
</div>
popupVisible = ko.observable(false);
showPopup = function () {
    popupVisible(true);
};
hidePopup = function () {
    popupVisible(false);
};
processHiding = function () {
  DevExpress.ui.dialog.alert("The widget has been hidden", "Action executed");
};
body{
  text-align: center;
}
.button{
  margin: 10px;
}

hidingAction

An action performed before hiding the overlay.

Type: String|function(e)
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.
cancel: Boolean
Indicates whether or not to cancel hiding the overlay.
Default Value: null

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

Alternatively, you can assign a URL to which the browser will navigate before hiding the overlay.

Show Example:
jQuery
<div class="button" data-bind="dxButton: { text: 'Show popup', clickAction: showPopup }"></div>
<div data-bind="dxPopover: { visible: popupVisible, hidingAction: processHiding, target: '.button' }">
    <div data-options="dxTemplate:{ name: 'content' }">
        <div class="button" data-bind="dxButton: { text: 'Hide popup', clickAction: hidePopup }"></div>
        <p>The popup contents.</p>
    </div>
</div>
popupVisible = ko.observable(false);
showPopup = function () {
    popupVisible(true);
};
hidePopup = function () {
    popupVisible(false);
};
processHiding = function () {
  DevExpress.ui.dialog.alert("The widget is being hidden", "Action executed");
};
body{
  text-align: center;
}
.button{
  margin: 10px;
}

hoverStateEnabled

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

Type: Boolean
Default Value: true

position

An object defining widget positioning options.

Type: String|position configuration
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

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:
jQuery
<div class="button" data-bind="dxButton: { text: 'Show popup', clickAction: showPopup }"></div>
<div data-bind="dxPopover: { visible: popupVisible, shading: popupShading, target: '.button' }">
    <div data-options="dxTemplate:{ name: 'content' }">
        <div class="button" data-bind="dxButton: { text: 'Hide popup', clickAction: hidePopup }"></div>
        <p>The popup contents.</p>
    </div>
</div>
<div class="dx-fieldset">
  <div class="dx-field">
    <div class="dx-field-label">Shading</div>
    <div class="dx-field-value" data-bind="dxCheckBox: { checked: popupShading }"></div>
  </div>
</div>
popupVisible = ko.observable(false);
popupShading = ko.observable(true);
showPopup = function () {
    popupVisible(true);
};
hidePopup = function () {
    popupVisible(false);
};
body{
  text-align: center;
}
.button{
  margin: 10px;
}

shadingColor

Specifies the shading color.

Type: String
Default Value: ''

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

showingAction

An action performed before showing the overlay.

Type: String|function(e)
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.
Default Value: null

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

Alternatively, you can assign a URL to which the browser will navigate before showing the overlay.

Show Example:
jQuery
<div class="button" data-bind="dxButton: { text: 'Show popup', clickAction: showPopup }"></div>
<div data-bind="dxPopover: { visible: popupVisible, showingAction: processShowing, target: '.button' }">
    <div data-options="dxTemplate:{ name: 'content' }">
        <div class="button" data-bind="dxButton: { text: 'Hide popup', clickAction: hidePopup }"></div>
        <p>The popup contents.</p>
    </div>
</div>
popupVisible = ko.observable(false);
showPopup = function () {
    popupVisible(true);
};
hidePopup = function () {
    popupVisible(false);
};
processShowing = function () {
  DevExpress.ui.dialog.alert("The widget is being shown", "Action executed");
};
body{
  text-align: center;
}
.button{
  margin: 10px;
}

shownAction

An action performed after the overlay is shown.

Type: String|function(e)
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.
Default Value: null

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

Alternatively, you can assign a URL to which the browser will navigate after the overlay is shown.

Show Example:
jQuery
<div class="button" data-bind="dxButton: { text: 'Show popup', clickAction: showPopup }"></div>
<div data-bind="dxPopover: { visible: popupVisible, shownAction: processShowing, target: '.button' }">
    <div data-options="dxTemplate:{ name: 'content' }">
        <div class="button" data-bind="dxButton: { text: 'Hide popup', clickAction: hidePopup }"></div>
        <p>The popup contents.</p>
    </div>
</div>
popupVisible = ko.observable(false);
showPopup = function () {
    popupVisible(true);
};
hidePopup = function () {
    popupVisible(false);
};
processShowing = function () {
  DevExpress.ui.dialog.alert("The widget has been shown", "Action executed");
};
body{
  text-align: center;
}
.button{
  margin: 10px;
}

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.

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: String|function|DOM Node|jQuery
Return Value: String|jQuery
A template name or a template container.
Default Value: "title"

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

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

The $data variable available within the template contains the data model object bound to the current view.

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

NOTE: If you specify the widget title using a template, you should specify the content template using the contentTemplate option as well.

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:
jQuery
<div class="dx-fieldset">
  <div class="dx-field">
    <div class="dx-field-label">Visible</div>
    <div id="target" class="dx-field-value" data-bind="dxCheckBox: { checked: popupVisible }"></div>
  </div>
</div>
<div data-bind="dxPopover: { visible: popupVisible, title: 'My popup', target: '.dx-field-value' }">
    <div data-options="dxTemplate:{ name: 'content' }">
        <div class="dx-field">
            <div class="dx-field-label">Visible</div>
            <div class="dx-field-value" data-bind="dxCheckBox: { checked: popupVisible }"></div>
        </div>
    </div>
</div>
popupVisible = ko.observable(false);
body{
  text-align: center;
}

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 + "%"; })