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
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
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 ProgressBar widget in an application executed on the desktop.
jQuery
DevExpress.ui.dxProgressBar.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ProgressBar options } });
Angular
import ProgressBar from 'devextreme/ui/progress_bar'; // ... export class AppComponent { constructor () { ProgressBar.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ProgressBar options } }); } }
dispose()
The following code disposes of an ProgressBar instance that corresponds to the element ID (or reference variable in Angular) and removes the element from the DOM:
jQuery
$("#myProgressBar").dxProgressBar("dispose"); $("#myProgressBar").remove();
Angular
<dx-progress-bar #progressBarVar id="myProgressBar"></dx-progress-bar>
import { ..., ViewChild } from "@angular/core"; import { DxProgressBarComponent } from "devextreme-angular"; // ... export class AppComponent { @ViewChild("progressBarVar") progressBar: DxProgressBarComponent; removeProgressBar (e) { this.progressBar.instance.dispose(); document.getElementById("myProgressBar").remove(); } }
endUpdate()
Refreshes the widget after a call of the beginUpdate() method.
Main article: beginUpdate()
See Also
- Call Methods: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
getInstance(element)
getInstance is a static method that the widget class supports. The following code demonstrates how to get the ProgressBar instance found in an element with the myProgressBar
ID:
// Modular approach import ProgressBar from 'devextreme/ui/progress_bar'; ... let element = document.getElementById("myProgressBar"); let instance = ProgressBar.getInstance(element) as ProgressBar; // Non-modular approach let element = document.getElementById("myProgressBar"); let instance = DevExpress.ui.dxProgressBar.getInstance(element);
See Also
If you have technical questions, please create a support ticket in the DevExpress Support Center.