Configuration

An object defining configuration options for the dxCalendar widget.

accessKey

Specifies a shortcut key that sets focus on the widget element.

Type:

String

Default Value: null

The accessKey option value is passed to the accesskey attribute of the actual HTML element of the widget.

activeStateEnabled

A Boolean value specifying whether or not the widget changes its state when interacting with a user.

Type:

Boolean

Default Value: false

This option is used when the widget is displayed on a platform whose guidelines include the active state change for widgets.

cellTemplate

The template to be used for rendering calendar cells.

Function parameters:
itemData:

Object

The cell object to be rendered.

itemIndex:

Number

The index of the cell to be rendered.

itemElement:

jQuery

An HTML element of the cell to be rendered.

Return Value:

String

|

DOM Node

|

jQuery

A template name or a template container.

Default Value: "cell"

The text displayed within the cell is held in the text field of the binding context object.

See Also
NOTE
A binding context of an item template is the data source object that corresponds to the currently rendered cell. To access another binding context within an item template, use Knockout/Angular binding variables.

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.

firstDayOfWeek

Specifies the first day of a week.

Type:

Number

Default Value: undefined

The option can take on a value from 0 to 6.

  • 0 - Sunday
  • 1 - Monday
  • 2 - Tuesday
  • 3 - Wednesday
  • 4 - Thursday
  • 5 - Friday
  • 6 - Saturday

By default, the value provided by the culture settings is used.

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focusStateEnabled

Specifies whether or not the widget can be focused.

Type:

Boolean

Default Value: false

height

Specifies the height of the widget.

Type:

Number

|

String

|

function

Return Value:

Number

|

String

The widget height.

Default Value: undefined

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 + "%"; })

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

isValid

Specifies whether the editor's value is valid.

Type:

Boolean

Default Value: true

You may need to use an editor to inform end users that an error occurred during the validation of a ViewModel field. In this instance, set the editor's isValid option to the isValid property value of the dxValidator that validated the ViewModel's field. In addition, set the editor's validationError option to the validationError property value of the dxValidator object.

In the code below, the login specified by an end user is validated on the level of the ViewModel. If validation of the login value fails, a validation message is displayed on the Login editor.

HTML
<div data-bind="dxTextBox: { value: login, isValid: login.dxValidator.isValid, validationError: login.dxValidator.validationError, placeholder: 'Login' }"></div>
JavaScript
var viewModel = {
    login: ko.observable("").extend({
        dxValidator: {
            validationRules: [{ type: 'required', message: 'Login is required' }]
        }
    }),
    //...
}

The editor's isValid option, as well as the validationError option, should also be specified when using a custom validation engine. In this instance, the validation result will be displayed for the editor by the means of the DevExtreme Validation UI.

See Also

max

The latest date the widget allows to select.

Type:

Date

Default Value: new Date(3000, 0)

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maxZoomLevel

Specifies the maximum zoom level of the calendar.

Type:

String

Default Value: 'month'
Accepted Values: 'month'|'year'|'decade'|'century'

min

The earliest date the widget allows to select.

Type:

Date

Default Value: new Date(1000, 0)

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minZoomLevel

Specifies the minimum zoom level of the calendar.

Type:

String

Default Value: 'century'
Accepted Values: 'month'|'year'|'decade'|'century'

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 and AngularJS approaches.

Default Value: null

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 and AngularJS approaches.

Default Value: null

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

onValueChanged

A handler for the valueChanged 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 and AngularJS approaches.

value:

Object

The widget's new value.

previousValue:

Object

The widget's previous value.

jQueryEvent:

jQuery.Event

Specifies the jQuery event that caused action execution.

Default Value: null

Assign a function to perform a custom action when the editor value changes.

readOnly

A Boolean value specifying whether or not the widget is read-only.

Type:

Boolean

Default Value: false

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.

showTodayButton

Specifies whether or not the widget displays a button that selects the current date.

Type:

Boolean

Default Value: false

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tabIndex

Specifies the widget tab index.

Type:

Number

Default Value: 0

validationError

Holds the object that defines the error that occurred during validation.

Type:

Object

Default Value: undefined

You may need to use an editor to inform end users that an error occurred during the validation of a ViewModel field. In this instance, set the editor's isValid option to the isValid property value of the dxValidator that validated the ViewModel's field. In addition, set the editor's validationError option to the validationError property value of the dxValidator object.

In the code, the login specified by an end user is validated on the level of the ViewModel. If validation of the login value fails, a validation message is displayed on the Login editor.

HTML
<div data-bind="dxTextBox: { value: login, isValid: login.dxValidator.isValid, validationError: login.dxValidator.validationError, placeholder: 'Login' }"></div>
JavaScript
var viewModel = {
    login: ko.observable("").extend({
        dxValidator: {
            validationRules: [{ type: 'required', message: 'Login is required' }]
        }
    }),
    //...
}

The editor's validationError option, as well as the isValid option, should also be specified when using a custom validation engine. In this instance, the validation result will be displayed for the editor by the means of the DevExtreme Validation UI.

See Also

validationMessageMode

Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.

Type:

String

Default Value: "auto"
Accepted Values: 'auto'|'always'

The following option values are possible:

  • auto
    The tooltip with the message is displayed when the editor is in focus.
  • always
    The tooltip with the message is not hidden when the editor loses focus.

value

The currently specified value.

Type:

Object

Default Value: null

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valueChangeAction

Deprecated

Use the onValueChanged option instead.

visible

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

Type:

Boolean

Default Value: true

width

Specifies the width of the widget.

Type:

Number

|

String

|

function

Return Value:

Number

|

String

The widget width.

Default Value: undefined

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. For example, see the following code.

    JavaScript
    width: function () { 
        return baseWidth - 10 + "%";
    }

zoomLevel

Specifies the current calendar zoom level.

Type:

String

Default Value: 'month'
Accepted Values: 'month'|'year'|'decade'|'century'

Zoom level determines the size of a date range displayed on a single calendar page.

View Demo

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