React SPA Framework - Markup Components - Command - Methods

This section describes members used to manipulate the command.

beginUpdate()

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

The beginUpdate() and endUpdate() methods prevent the widget from excessive updates when you are changing multiple widget settings at once. After the beginUpdate() method is called, the widget does not update its UI until the endUpdate() method is called.

defaultOptions(rule)

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

Parameters:

rule:

Object

The component's default device options.

Object structure:

Name	Type	Description
device	Device \| Array<Device> \| Function	Device parameters. When specifying a function, get information about the current device from the argument. Return true if the options should be applied to the device.
options	Object	Options to be applied.

Name

Type

Description

device

Device

|

Array<Device>

|

Function

Device parameters.
When specifying a function, get information about the current device from the argument. Return true if the options should be applied to the device.

options

Object

Options to be applied.

dispose()

Disposes of all the resources allocated to the dxCommand instance.

element()

Gets the root widget element.

Return Value:

HTMLElement | jQuery

An HTML element or a jQuery element when you use jQuery.

endUpdate()

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

Main article: beginUpdate()

execute()

Executes the action associated with this command.

Depending on the layout used for the current view, specific command containers will be available for commands added to this view. Depending on how you define command mapping, the command will be displayed by a specific item of the widget that serves as a command container. When clicking the widget item, the execute() method will be be called for the associated command. This method performs the function assigned to the onExecute command option or calls the navigate() function to navigate to the URL specified for the onExecute command option.