import { Component, ViewChild, AfterViewInit } from '@angular/core'; import { jqxPanelComponent } from 'jqwidgets-scripts/jqwidgets-ts/angular_jqxpanel'; @Component({ selector: 'app-root', templateUrl: './app.component.html' }) export class AppComponent implements AfterViewInit { @ViewChild('myPanel') myPanel: jqxPanelComponent; ngAfterViewInit(): void { this.myPanel.elementRef.nativeElement.firstChild.style.border = 'none'; } onValueChanged(event: any): void { this.myPanel.clearcontent(); let date = event.args.date; this.myPanel.prepend('