Adding a tooltip to a specific header in a Vue list - here's how!

My goal is to add a tooltip to a specific header labeled 'Retire' within a data table, without affecting any of the other headers. It's been quite the learning experience for me as a Vue novice, but with the help of AI (chatgpt), I've made some progress. However, despite no errors in my code or browser, the tooltip is not appearing. Can someone assist me in achieving this? Thank you.

Below is the section of code where I am working on the data table and configuring the headers:

<v-data-table
  class="zebrastripes"
  :items="autofilterItems"
  :items-per-page="20"
  :footer-props="{
  'items-per-page-options': [5, 10, 20, -1],
  }"
  :headers="headers"
  :search="search"
  :no-results-text="$t('General.noSearchMatch')"
  :custom-sort="dateSorting"
  :loading="trigger_loader"
  >
  <template v-slot:header="header">
    <th :key="header.text">
      <v-tooltip :value="header.value === 'Retire'" bottom>
        <template v-slot:activator="{ on }">
          <span v-on="on">{{header.text}}</span>
        </template>
        <span v-if="header.value === 'Retire'">{{ header.tooltip }}</span>
      </v-tooltip>
    </th>
  </template>
</v-data-table>

Answer №1

To display tooltips for specific headers, utilize the header.value slot on each header item and set a condition for when the tooltip should appear.

For example, the following code snippet demonstrates how to show a tooltip only for a header titled Retire.

<!DOCTYPE html>
<html>
  <head>
    <link href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/@mdi/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="2d4b4243596d190355">[email protected]</a>/css/materialdesignicons.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="8ff9faeafbe6e9f6cfbda1f7">[email protected]</a>/dist/vuetify.min.css" rel="stylesheet">
  </head>
  <body>
    <div id="app">
      <v-app>
        <v-data-table
          :headers="headers"
          :items="autofilterItems"
          :items-per-page="5"
          class="elevation-1"
          :items-per-page="20"
          no-results-text="General.noSearchMatch"
          >
          <template v-for="header in headers" v-slot:[`header.${header.value}`]="{ header }">
          <v-tooltip bottom v-if="header.value == 'Retire'">
            <template v-slot:activator="{ on }">
              <span v-on="on">{{ header.text }}</span>
            </template>
            <span>{{ header.tooltip }}</span>
          </v-tooltip>
          <span v-else>{{ header.text }}</span>
          </template>
        </v-data-table>
      </v-app>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="3c4a49597c0e1244">[email protected]</a>/dist/vue.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="ff898a9a8b969986bfcdd187">[email protected]</a>/dist/vuetify.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/axios/1.2.2/axios.min.js" integrity="sha512-QTnb9BQkG4fBYIt9JGvYmxPpd6TBeKp6lsUrtiVQsrJ9sb33Bn9s0wMQO9qVBFbPX3xHRAsBHvXlcsrnJjExjg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
    <script>
      new Vue({
        el: '#app',
        vuetify: new Vuetify(),
        data() {
          return {
            headers: [
              {
                text: 'Retire',
                value: 'Retire',
                sortable: false,
                tooltip: 'I am a tooltip'
              },
              {
                text: 'Dessert (100g serving)',
                value: 'name',
                sortable: false,
              },
              {
                text: 'Fat (g)',
                value: 'fat',
                sortable: false,
              },
              {
                text: 'Carbs (g)',
                value: 'carbs',
                sortable: false,
              },
              {
                text: 'Protein (g)',
                value: 'protein',
                sortable: false,
              },
              {
                text: 'Iron (%)',
                value: 'iron',
                sortable: false,
              },
            ],
            autofilterItems: [{
                name: 'Frozen Yogurt',
                Retire: true,
                fat: 6.0,
                carbs: 24,
                protein: 4.0,
                iron: 1,
              },
              {
                name: 'Ice cream sandwich',
                Retire: true,
                fat: 9.0,
                carbs: 37,
                protein: 4.3,
                iron: 1,
              },
            ],
          }
        },
      })
    </script>
  </body>
</html>

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