Creating a container component in Angular2
Jürgen Gutsch - 28 September, 2016
In one of the last projects, I needed a shared reusable component, which needs to be extended with additional contents or functionality by the view who uses this component. In our case, it was a kind of a menu bar used by multiple views. (View in this case means routing targets.)
Creating such components was easier than expected. I anyway spent almost a whole day to find that solution, I played around with view and template providers, tried to access the template and to manipulate the template. I also tried to create an own structural directive.
But you just need to use the
<nav> <div class="navigation pull-left"> <ul> <!-- the menu items ---> </ul> </div> <div class="pull-right"> <ng-content></ng-content> </div> </nav
That's all. You don't need to write any TypeScript code to get this working. Using this component is now pretty intuitive:
<div class="nav-bar"> <app-navigation> <button (click)="printDraft($event)">print draft</button> <button (click)="openPreview($event)">Show preview</button> </app-navigation> </div>
The contents of the
After spending almost a whole day to get this working my first question was: Is it really that easy? Yes it is. That's all.
Maybe you knew about it. But I wasn't able to find any hint in the docs, on StackOverflow or in any Blog about it. Maybe this requirement isn't used needed often. At least I stumbled upon a documentation where ng-content as used and I decided to write about it. Hope it will help someone else. :)