Dropdown method not working


Topic: Dropdown method not working

Nguyen Ba Tung pro premium asked a year ago

Dropdown method not working enter image description here enter image description here enter image description here


@Nguyen Ba Tung You need to add template variable #dropdown to the element with mdbDropdown directive and then use ViewChild like this:

@ViewChild('dropdown') dropdown: MdbDropdownDirective;

HTML:

      <div mdbDropdown class="dropdown" #dropdown>
        <button
          class="btn btn-primary dropdown-toggle"
          type="button"
          id="dropdownMenuButton"
          aria-expanded="false"
          mdbDropdownToggle
        >
          Dropdown button
        </button>
        <ul mdbDropdownMenu class="dropdown-menu" aria-labelledby="dropdownMenuButton">
          <li><a class="dropdown-item" href="#">Action</a></li>
          <li><a class="dropdown-item" href="#">Another action</a></li>
          <li><a class="dropdown-item" href="#">Something else here</a></li>
        </ul>
      </div>

TS:

  @ViewChild('dropdown') dropdown: MdbDropdownDirective;
  constructor() {}

  ngOnInit(): void {}

  ngAfterViewInit(): void {
    Promise.resolve().then(() => {
      this.dropdown.show();
    });
  }

Nguyen Ba Tung pro premium commented a year ago

it still doesn't work https://i.imgur.com/uENPDPj.jpg https://i.imgur.com/yqGUlrp.jpg https://i.imgur.com/PNAvcxT.jpg


Arkadiusz Idzikowski staff commented a year ago

@Nguyen Ba Tung I edited my post and added the full HTML/TS code of a working example. We found a problem with a component change detection, that's why I added a workaround with Promise, normally it won't be needed when we add a fix.


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Status

Answered

Specification of the issue
  • User: Pro
  • Premium support: Yes
  • Technology: MDB Angular
  • MDB Version: MDB5 1.0.0-beta5
  • Device: PC
  • Browser: Chrome
  • OS: Linux
  • Provided sample code: No
  • Provided link: No