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.
See Also
defaultOptions(rule)
defaultOptions is a static method that the widget class supports. The following code demonstrates how to specify default options for all instances of the DateBox widget in an application executed on the desktop.
jQuery
DevExpress.ui.dxDateBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the DateBox options } });
Angular
import DateBox from "devextreme/ui/date_box"; // ... export class AppComponent { constructor () { DateBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the DateBox options } }); } }
Vue
<template> <div> <dx-date-box id="dateBox1" /> <dx-date-box id="dateBox2" /> </div> </template> <script> import DxDateBox from "devextreme-vue/date-box"; import DateBox from "devextreme/ui/date_box"; DateBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the DateBox options } }); export default { components: { DxDateBox } } </script>
React
import React from "react"; import dxDateBox from "devextreme/ui/date_box"; import DateBox from "devextreme-react/date-box"; class App extends React.Component { render () { dxDateBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the DateBox options } }) return ( <div> <DateBox id="dateBox1" /> <DateBox id="dateBox2" /> </div> ) } } export default App;
dispose()
The following code disposes of an DateBox instance that corresponds to the element ID (or reference variable in Angular) and removes the element from the DOM:
jQuery
$("#myDateBox").dxDateBox("dispose"); $("#myDateBox").remove();
Angular
<dx-date-box #dateBoxVar id="myDateBox"></dx-date-box>
import { ..., ViewChild } from "@angular/core"; import { DxDateBoxComponent } from "devextreme-angular"; // ... export class AppComponent { @ViewChild("dateBoxVar") dateBox: DxDateBoxComponent; removeDateBox (e) { this.dateBox.instance.dispose(); document.getElementById("myDateBox").remove(); } }
endUpdate()
Refreshes the widget after a call of the beginUpdate() method.
Main article: beginUpdate()
See Also
getInstance(element)
getInstance is a static method that the widget class supports. The following code demonstrates how to get the DateBox instance found in an element with the myDateBox
ID:
// Modular approach import DateBox from "devextreme/ui/date_box"; ... let element = document.getElementById("myDateBox"); let instance = DateBox.getInstance(element) as DateBox; // Non-modular approach let element = document.getElementById("myDateBox"); let instance = DevExpress.ui.dxDateBox.getInstance(element);
See Also
option()
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | Vue | React | ASP.NET MVC
option(optionName)
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | Vue | React | ASP.NET MVC
option(optionName, optionValue)
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | Vue | React | ASP.NET MVC
option(options)
See Also
- Get and Set Options
- Call Methods: jQuery | Angular | AngularJS | Knockout | Vue | React | ASP.NET MVC
registerKeyHandler(key, handler)
A handler. Accepts the keydown event as the argument. It is a dxEvent or a jQuery.Event when you use jQuery.
The key argument accepts one of the following values:
- "backspace"
- "tab"
- "enter"
- "escape"
- "pageUp"
- "pageDown"
- "end"
- "home"
- "leftArrow"
- "upArrow"
- "rightArrow"
- "downArrow"
- "del"
- "space"
- "F"
- "A"
- "asterisk"
- "minus"
A custom handler for a key cancels the default handler for this key.