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So I'm working with Angular and I'm trying to make a button that when clicked disappears. I have tried to use [hidden], (click)="showHide = !showHide", and a bunch of other methods. Nothing is working so far.

My html (currently):

<div class="rows">
   <div class="a-bunch-of-styles-for-my-button">
      <a type="button" class="more-styles" (click)="inboundClick = !inboundClick" [routerLink]="['/inbound']" href="">
      </a>
   </div>
</div>

and my component:

export class AppComponent {
   inboundClick = false;
}

In essence I have 2 buttons on a page and when one button is clicked I want to hide both buttons and display a set of new buttons.

I'm very new to Angular and I'm very confused why this won't work.

Your HTML

<div class="yourCssClass" *ngIf="this.isButtonVisible" (click)="this.isButtonVisible = false">
...
</div>

Your TypeScript

export class AppComponent {
   private isButtonVisible = true;
}

This should do the job. *ngIf automatically hides the element, if the condition evaluates false, so setting the variable to false is sufficient.

The problem I see here is, that you don't control the visibility at any point. Using [ngClass] to add a specific class, if a condition is met, or *ngIf is helpful, whenever you try to change elements on user interaction.

For more information on [ngClass], you can read about its usage here: https://angular.io/api/common/NgClass

You can read about *ngIf here: https://angular.io/api/common/NgIf

Especially the "Common Use" part should be interesting for you.

Edit: Reading your comment below it seems you did not notice what [hidden] and (click) actually do. [hidden] controls the visibility of the element, usually dependent on a certain condition. (click) however is a quick way to bind a Click-Event to your element.

Using both of those tools enables to hide an element, by changing a variable, if a user clicks on your element (the new value of the variable may be assigned by a function called by (click) or inline, as demonstrated in the example code).

Edit2: Yep, you meant Angular2/4 ;) So this should do the job.

22 users liked answer #0dislike answer #022
GxTruth profile pic
GxTruth

Here is how you can achieve that:

In your component.html:

<a type="button" class="more-styles" 
   [hidden]="!inboundClick" 
   (click)="inboundClick = !inboundClick" 
   [routerLink]="['/inbound']" href="">
</a>

<a type="button" class="more-styles" 
   [hidden]="!outboundClick " 
   (click)="outboundClick = !outboundClick " 
   [routerLink]="['/outbound']" href="">
</a>

... and in your AppComponent:

export class AppComponent {
    inboundClick = true;
    outboundClick = true;
}

PLUNKER DEMO

9 users liked answer #1dislike answer #19
Faisal profile pic
Faisal

Here is a neat way to hide/remove items, specially handy if there is a list of items.

Note how it takes advantage of Angular's template variables (#ListItem).

So your template can either be something like:

<a type="button" #ButtonA
   (click)="onClick(ButtonA)" 
   [routerLink]="['/inbound']" href="">
</a>

<a type="button" #ButtonB
   (click)="onClick(ButtonB)" 
   [routerLink]="['/outbound']" href="">
</a>

Or like this:

<ng-container *ngFor="let item of list">
  <div #ListItem>
    <button (click)="onClick(ListItem)">
  </div>
</ng-container>

Depending on how you want to hide - if you want to remove it from DOM, or just hide it with CSS. And depending if you want to toggle it or just remove it completely. There are a few options:

Remove element from DOM (no way to get it back):

close(e: HTMLElement) {
   e.remove();
}

Hiding it with the hidden attribute - beware that the hidden attribute can be overriden by CSS, it will happen if you are changing the display property and the rule has more precedence:

close(e: HTMLElement) {
   e.toggleAttribute('hidden');
}

Hiding it "manually" with CSS:

close(e: HTMLElement) {
   e.classList.toggle('hide-element');
}
.hide-element {
   display: none;
}
0 users liked answer #2dislike answer #20
Rui Marques profile pic
Rui Marques

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