# DatePickerEventBuilder

## Methods

### Change(System.String)

Defines the handler of the Change client-side event. Fires when the selected date is changed

For more information see [Change](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/change) event.

#### Parameters

##### handler - `System.String`

The name of the JavaScript function that will handle the Change event.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### Change(System.Func)

Defines the handler of the Change client-side event. Fires when the selected date is changed

For more information see [Change](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/change) event.

#### Parameters

##### handler - `System.Func<Object,Object>`

The handler code wrapped in a text tag.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### Close(System.String)

Defines the handler of the Close client-side event. Fires when the calendar is closed

For more information see [Close](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/close) event.

#### Parameters

##### handler - `System.String`

The name of the JavaScript function that will handle the Close event.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### Close(System.Func)

Defines the handler of the Close client-side event. Fires when the calendar is closed

For more information see [Close](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/close) event.

#### Parameters

##### handler - `System.Func<Object,Object>`

The handler code wrapped in a text tag.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### Open(System.String)

Defines the handler of the Open client-side event. Fires when the calendar is opened

For more information see [Open](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/open) event.

#### Parameters

##### handler - `System.String`

The name of the JavaScript function that will handle the Open event.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### Open(System.Func)

Defines the handler of the Open client-side event. Fires when the calendar is opened

For more information see [Open](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/open) event.

#### Parameters

##### handler - `System.Func<Object,Object>`

The handler code wrapped in a text tag.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### KendoKeydown(System.String)

Defines the handler of the KendoKeydown client-side event. Triggered when the user presses a keyboard key while the DatePicker is focused.The event handler function context (available via the this keyword) will be set to the widget instance.

For more information see [KendoKeydown](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/kendokeydown) event.

#### Parameters

##### handler - `System.String`

The name of the JavaScript function that will handle the KendoKeydown event.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .

### KendoKeydown(System.Func)

Defines the handler of the KendoKeydown client-side event. Triggered when the user presses a keyboard key while the DatePicker is focused.The event handler function context (available via the this keyword) will be set to the widget instance.

For more information see [KendoKeydown](https://docs.telerik.com/kendo-ui/api/ui/datepicker/events/kendokeydown) event.

#### Parameters

##### handler - `System.Func<Object,Object>`

The handler code wrapped in a text tag.

#### RETURNS

Returns the current instance of [DatePickerEventBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/datepickereventbuilder) .