To trigger a Bootstrap 5 modal in a child component from a button click in the parent component in Angular without the need to install ng-bootstrap is possible with the following approach

To achieve the functionality of opening a modal in a child component upon clicking a button in the parent component without using ngx-bootstrap due to restrictions, one approach is to add data-bs-target and data-bs-toggle attributes to the button. Additionally, having a <child></child> instance in the parent component can help make this work.

However, before opening the modal, certain validations need to be performed. Implementing these validations effectively is crucial for the desired outcome. Any ideas on how this can be done?

Answer №1

To add Bootstrap to your project, make sure to also install @types/bootstrap

npm install --save @types/bootstrap

After installing, you can use TypeScript to control a Modal. For example:

  <!--using template reference in the button-->
  <button type="button" class="btn btn-primary" (click)="show(modal)">
    Launch demo modal
  </button>
<!--referencing the modal using template reference-->
<div #modal class="modal fade" tabindex="-1" >
   //Modal content here...
</div>

In your .ts file:

  import {Modal} from 'bootstrap' //<--import Modal

  show(modalElement){
    const modal=new Modal(modalElement);
    modal.show();
  }

You can also utilize ViewChild for this purpose:

  @ViewChild('modal') modalRef
  show(){
    const modal=new Modal(this.modalRef.nativeElement);
    modal.show();
  }

If your child component contains the modal, use a template reference variable in the child and access it in the parent component like this:

  <button type="button" (click)="show(child.modal)">
    Launch demo modal
  </button>
  <child #child></child>

  //Using nativeElement in this case
  show(modalRef){
    const modal=new Modal(modalRef.nativeElement);
    modal.show();
  }

Check out the StackBlitz example

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