bootstrap-vue multi level drop down

Asked By: Anonymous

i’m using bootstrap-vue and i have a multi level drop down menu (for categories) . this is official site example :

https://bootstrap-vue.org/docs/components/dropdown

<b-dropdown id="dropdown-1" text="Dropdown Button" class="m-md-2">
  <b-dropdown-item>First Action</b-dropdown-item>
  <b-dropdown-item>Second Action</b-dropdown-item>
</b-dropdown>

but i don’t know how to create a multi level menu (i copy drop downs inside each other but it does not work) ! it has only 1 level drop down example ! how can i create a multi level one ?

tnx

Solution

Answered By: Anonymous

So as I mentioned in my comments you can wrap b-dropdown events and do something custom like this:

<div id="app">
  <b-dropdown id="dropdown-1" text="Dropdown Button 1" class="m-md-2">
    <b-dropdown-item>First Action 1</b-dropdown-item>
    <b-dropdown-item>Second Action 1</b-dropdown-item>
    <b-dropdown id="dropdown-2" text="Dropdown Button 2" class="m-md-2">
        <b-dropdown-item>First Action 2</b-dropdown-item>
        <b-dropdown-item>Second Action 2</b-dropdown-item>
    </b-dropdown>
  </b-dropdown>
</div>

    mounted: function () {
      this.$root.$on('bv::dropdown::show', bvEvent => {
        if(bvEvent.componentId === 'dropdown-2') {
          this.isDropdown2Visible = true;
        }
        })
      this.$root.$on('bv::dropdown::hide', bvEvent => {
        if(bvEvent.componentId === 'dropdown-2') {
          this.isDropdown2Visible = false;
        }
        if(this.isDropdown2Visible) {
          bvEvent.preventDefault()
        }
        })
    }

Fully working example you can find here: Vue bootstrap nested dropdown