Scroll to element on click in Angular 4

Question

I want to be able to scroll to a target when a button is pressed. I was thinking something like this.

<button (click)="scroll(#target)">Button</button>

And in my component.ts a method like.

scroll(element) {
    window.scrollTo(element.yPosition)
}

I know that the code above is not valid but just to show what I was thinking. I've just started to learn Angular 4 with no previous experience of Angular. I've been searching around for something like this but all the examples are in AngularJs which differs alot to Angular 4

Answer 1

in angular you can use ViewChild and ElementRef: give your html element a ref

<div #myDiv > 

and inside your component:

import { ViewChild, ElementRef } from '@angular/core';
@ViewChild('myDiv') myDivRef: ElementRef;

you can use this.myDivRef.nativeElement to get to your element

Answer 2

You can scroll to any element ref on your view by using the code block below. Note that the target (elementref id) could be on any valid html tag.

On the view(html file)

<div id="target"> </div>
<button (click)="scroll()">Button</button>

on the .ts file,

scroll() {
   document.querySelector('#target').scrollIntoView({ behavior: 'smooth', block: 'center' });
}

Answer 3

You can achieve that by using the reference to an angular DOM element as follows:

Here is the example in stackblitz

the component template:

<div class="other-content">
      Other content
      <button (click)="element.scrollIntoView({ behavior: 'smooth', block: 'center' })">
        Click to scroll
      </button>
    </div>
    <div id="content" #element>
      Some text to scroll
</div>

Answer 4

You could do it like this:

<button (click)="scroll(target)"></button>
<div #target>Your target</div>

and then in your component:

scroll(el: HTMLElement) {
    el.scrollIntoView();
}

Edit: I see comments stating that this no longer works due to the element being undefined. I created a StackBlitz example in Angular 7 and it still works. Can someone please provide an example where it does not work?

Answer 5

In angular 7 works perfect

HTML

<button (click)="scroll(target)">Click to scroll</button>
<div #target>Your target</div>

In component

  scroll(el: HTMLElement) {
    el.scrollIntoView({behavior: 'smooth'});
  }

Answer 6

You can do this by using jquery :

ts code :

    scrollTOElement = (element, offsetParam?, speedParam?) => {
    const toElement = $(element);
    const focusElement = $(element);
    const offset = offsetParam * 1 || 200;
    const speed = speedParam * 1 || 500;
    $('html, body').animate({
      scrollTop: toElement.offset().top + offset
    }, speed);
    if (focusElement) {
      $(focusElement).focus();
    }
  }

html code :

<button (click)="scrollTOElement('#elementTo',500,3000)">Scroll</button>

Apply this on elements you want to scroll :

<div id="elementTo">some content</div>

Here is a stackblitz sample.