How to Style Grouped Rows in Vuetify Datatable Using Slots

If you’re working with Vuetify, a powerful Vue.js framework for building user interfaces, you might come across the need to style grouped rows in a datatable. Vuetify provides an intuitive way to achieve this using slots. In this tutorial, we’ll explore how you can customize the styling of grouped rows in Vuetify datatable.

Understanding Grouped Rows in Vuetify Datatable

Grouped rows in a datatable allow you to organize and categorize data based on a specific column value. By grouping related data together, you can provide a more structured and organized view for your users. Vuetify makes it easy to implement grouped rows using the group-by and show-group-by properties.

Step 1: Setting up the Datatable

To get started, make sure you have Vuetify properly installed and configured in your project. Then, create a new Vue component that will contain your datatable. Here’s an example of a basic datatable setup:

code













































<template>
  <v-data-table
    :headers="headers"
    :items="desserts"
    item-key="name"
    group-by="category"
    show-group-by
  ></v-data-table>
</template>

<script>
export default {
  data() {
    return {
      headers: 









[
        {
          text: 'Dessert (100g serving)',
          align: 'left',
          value: 'name',
        },
        {
          text: 'Category',
          value: 'category',
        },
      ] 
,
      desserts: 

[
        // Your dessert data goes here
      ] 



,
    };
  },
};
</script>

This sets up a basic datatable with two columns: “Dessert (100g serving)” and “Category”. The group-by and show-group-by properties enable grouping by the “Category” column.

Step 2: Customizing the Grouped Rows

Now, let’s dive into customizing the styling of grouped rows using slots. Slots allow you to inject custom content into specific parts of the Vuetify component. In this case, we’ll be using the group slot to customize the appearance of grouped rows.

code


























<template>
  <v-data-table
    :headers="headers"
    :items="desserts"
    item-key="name"
    group-by="category"
    show-group-by
  >
    <template v-slot:group="{ group, headers, items }">
      <span class="group-header">{{ group }}</span>
      <v-data-table
        :headers="headers"
        :items="items"
        hide-default-footer
      >
        <!-- Customize the grouped rows here -->
        <template v-slot:item="{ item }">
          <tr class="grouped-row">
            <!-- Add your custom row styling here -->
            <td>{{ item.name }}</td>
            <td>{{ item.category }}</td>
          </tr>
        </template>
      </v-data-table>
    </template>
  </v-data-table>
</template>

In the above code, we define the group slot inside the v-data-table component. The group slot provides access to the group, headers, and items properties, which represent the group value, column headers, and grouped items respectively.

Within the group slot, we create a custom header element to display the group value. You can apply any CSS classes or styles to this element to achieve the desired visual effect. In this example, we add the class group-header to style the group header.

Next, we nest another v-data-table component inside the group slot. This nested datatable represents the grouped rows. You can customize the appearance of the grouped rows by using the item slot inside this nested datatable. In the example, we add the class grouped-row to style the grouped rows.

Step 3: Adding Custom CSS Styling

To make the styling changes visible, you’ll need to define the corresponding CSS styles. Here’s an example of how you can style the group header and the grouped rows:

code










<style>
.group-header {
  font-weight: bold;
  background-color: #f5f5f5;
  padding: 8px;
}

.grouped-row {
  background-color: #e0e0e0;
}
</style>

Feel free to modify the CSS styles according to your preferences. You can change the colors, fonts, paddings, or any other CSS properties to match your desired design.

Conclusion

In this tutorial, we’ve learned how to style grouped rows in Vuetify datatable using slots. By customizing the group slot and applying CSS styles, you can create unique and visually appealing designs for your grouped rows. Vuetify’s flexibility and slot system make it easy to achieve the desired styling without compromising functionality.

Experiment with different CSS styles and get creative with your designs. By leveraging the power of Vuetify and its slot-based customization, you can create stunning datatables that perfectly fit your project’s requirements.

If you have any questions or need further assistance, feel free to leave a comment below.