Angular allows for the dynamic inclusion and exclusion of components, providing a flexible

Question

Angular allows for the dynamic inclusion and exclusion of components, providing a flexible

In my setup, I have a container that houses two distinct components. The first component receives a list of users from the backend.

Upon clicking on a specific user, I aim to display all of their detailed information in the main container of the second component.

To view my code, you can check it out on Stackblitz

However, I am facing an issue where removing an added component does not function correctly. Instead of deleting the selected component, it only removes the last one. Can someone assist me in identifying and resolving this error?

javascript angular typescript angular-dynamic-components

Answer 1

Answer №1

userID is consistently undefined whenever the function

this.userService.removeUser(userID);

is called. The root cause of this issue lies in your template, where you mistakenly invoked removeUser(options.userID) instead of the correct removeUser(options.id) :

  <div class="one-user" id="{{ options.id }}">
    <div>User ID: {{ options.id }}</div>
    <div>Name: {{ options.name }}</div>
    <div>Age {{ options.age }}</div>
    <button (click)="removeUser(options.id)">remove</button> 
  </div>

Additionally, keep in mind that viewContainerRef.remove requires the index of an element as an argument, not an id. Therefore, it is crucial to ensure the correct index is passed (0 for the first element, 1 for the second, and so on).

Answer 2

userID is consistently undefined whenever the function

this.userService.removeUser(userID);

is called. The root cause of this issue lies in your template, where you mistakenly invoked removeUser(options.userID) instead of the correct removeUser(options.id) :

  <div class="one-user" id="{{ options.id }}">
    <div>User ID: {{ options.id }}</div>
    <div>Name: {{ options.name }}</div>
    <div>Age {{ options.age }}</div>
    <button (click)="removeUser(options.id)">remove</button> 
  </div>

Additionally, keep in mind that viewContainerRef.remove requires the index of an element as an argument, not an id. Therefore, it is crucial to ensure the correct index is passed (0 for the first element, 1 for the second, and so on).

Angular allows for the dynamic inclusion and exclusion of components, providing a flexible

Answer №1

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