角度分量DOM添加属性键

Question

I'am looping on DOM element of angular component with ngfor like that

  <td>  
     <button class="dropdown-item" idgroup={{compte_ingroup}} href="#">
       action
     </button>

 </td> 

my question is about to know how to add reference to element create in loop. this issue happen to me ==> Can't bind to 'idgroup' since it isn't a known property of 'button'

please what I'am doing wrong?

Answer 1

If what you have is a component which template is

<td>
...
</td>

you should provide a property to it called idgroup, and when you invoke that component should be something like this:

<app-mycomponent *ngFor="let myelement of elementsList" [idgroup]="myelement.idgroup"></app-movie>

and in the component definition:

@Component({
    ...
})
export class MyComponent {
  @Input() idgroup: any;

  ...
}