Imitation of pressing a few buttons Angular 8?

When you click on the items button should open\closed
Made this code but it only works on one item . Elements are added dynamically

component
@ViewChild('loginButton.') loginButton.: ElementRef<HTMLElement>;

btnClick(){
console.log(this.loginButton..nativeElement);
 let el: HTMLElement = this.loginButton..nativeElement;
el.click();
}

.html


looks like