我如何从 css Angularjs2 访问组件变量

Question

home.component.css

#first-example {
  margin-top: 20%;
   /*parallax_image_path not working*/
  background-image: url({{parallax_image_path}});
}

home.component.html

<div class="main_container">

  <div class="main_content">
    <h2>Coming Soon</h2>
  </div>

  <div parallax id="first-example"></div>

</div>

home.component.ts

import {Component} from "@angular/core";
/**
 * Created by sai on 3/7/17.
 */
@Component({
  selector: "home",
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class Home {
  parallax_image_path = '/assets/website_background.jpg'
}

Answer 1

Just call the variable but you need to angular attribute.

In Angular 1, I believe we can use ng-src or src width curly braces inside the value. In angular 2, we can do it this way:

<img [src]="parallax_image_path">

Answer 2

You can not access it from home.component.css if that's what u are trying to do, but you can achieve the same effect using [ngStyle] angular directive.

 import { Component, OnInit, Input } from '@angular/core'; import { DomSanitizer, SafeStyle } from '@angular/platform-browser'; @Component({ selector: 'my-component', templateUrl: './my-component.component.html', styleUrls: ['./my-component.component.scss'] }) export class MyComponent implements OnInit { private backgroundImg: SafeStyle; @Input() myObject: any; constructor(private sanitizer: DomSanitizer) {} ngOnInit() { this.backgroundImg = this.sanitizer.bypassSecurityTrustStyle('url(' + this.myObject.ImageUrl + ')'); } }

 <div [style.background-image]="backgroundImg"></div>