JavaScript/jQuery ValidationSummary Methods
beginUpdate()
Prevents the UI component from refreshing until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods prevent the UI component from excessive updates when you are changing multiple UI component settings at once. After the beginUpdate() method is called, the UI component does not update its UI until the endUpdate() method is called.
See Also
defaultOptions(rule)
defaultOptions is a static method that the UI component class supports. The following code demonstrates how to specify default properties for all instances of the ValidationSummary UI component in an application executed on the desktop.
jQuery
DevExpress.ui.dxValidationSummary.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ValidationSummary properties } });
Angular
import ValidationSummary, { Properties } from "devextreme/ui/validation_summary"; // ... export class AppComponent { constructor () { ValidationSummary.defaultOptions<Properties>({ device: { deviceType: "desktop" }, options: { // Here go the ValidationSummary properties } }); } }
Vue
<template> <div> <DxValidationSummary id="validationSummary1" /> <DxValidationSummary id="validationSummary2" /> </div> </template> <script> import DxValidationSummary from "devextreme-vue/validation-summary"; import ValidationSummary from "devextreme/ui/validation_summary"; ValidationSummary.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ValidationSummary properties } }); export default { components: { DxValidationSummary } } </script>
React
import dxValidationSummary from "devextreme/ui/validation_summary"; import ValidationSummary from "devextreme-react/validation-summary"; dxValidationSummary.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ValidationSummary properties } }); export default function App() { return ( <div> <ValidationSummary id="validationSummary1" /> <ValidationSummary id="validationSummary2" /> </div> ) }
dispose()
jQuery
After calling this method, remove the DOM element associated with the UI component:
$("#myValidationSummary").dxValidationSummary("dispose"); $("#myValidationSummary").remove();
Angular
Use conditional rendering instead of this method:
<dx-validation-summary ... *ngIf="condition"> </dx-validation-summary>
Vue
Use conditional rendering instead of this method:
<template> <DxValidationSummary ... v-if="condition"> </DxValidationSummary> </template> <script> import DxValidationSummary from 'devextreme-vue/validation-summary'; export default { components: { DxValidationSummary } } </script>
React
Use conditional rendering instead of this method:
import React from 'react'; import ValidationSummary from 'devextreme-react/validation-summary'; function DxValidationSummary(props) { if (!props.shouldRender) { return null; } return ( <ValidationSummary ... > </ValidationSummary> ); } class App extends React.Component { render() { return ( <DxValidationSummary shouldRender="condition" /> ); } } export default App;
endUpdate()
Refreshes the UI component after a call of the beginUpdate() method.
Main article: beginUpdate()
See Also
getInstance(element)
getInstance is a static method that the UI component class supports. The following code demonstrates how to get the ValidationSummary instance found in an element with the myValidationSummary
ID:
// Modular approach import ValidationSummary from "devextreme/ui/validation_summary"; ... let element = document.getElementById("myValidationSummary"); let instance = ValidationSummary.getInstance(element) as ValidationSummary; // Non-modular approach let element = document.getElementById("myValidationSummary"); let instance = DevExpress.ui.dxValidationSummary.getInstance(element);
See Also
on(eventName, eventHandler)
Use this method to subscribe to one of the events listed in the Events section.
See Also
on(events)
Use this method to subscribe to several events with one method call. Available events are listed in the Events section.
See Also
If you have technical questions, please create a support ticket in the DevExpress Support Center.