Скачать или смотреть How to Easily Get the Selected Item in a Vuetify List

Discover the best approach to `capture selected items` in a Vuetify list using Vue.js for your dynamic applications.
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This video is based on the question https://stackoverflow.com/q/75493631/ asked by the user 'LemonGraZ' ( https://stackoverflow.com/u/8176916/ ) and on the answer https://stackoverflow.com/a/76463846/ provided by the user 'Kong' ( https://stackoverflow.com/u/244360/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Mastering Vuetify: Selecting Items from a List

If you're working with Vuetify and Vue.js, you might find yourself wanting to let users select items from a list, such as image files or other media. This common task can become frustrating, especially when the standard approaches don't seem to work. This guide will guide you through the process of effectively getting the selected item or index from a Vuetify list, so you can enhance your user experience seamlessly.

The Problem

Imagine you have a Vuetify list where users can click on items to select them. You want to keep track of which item is selected and display related information accordingly. You might have tried using v-model on the <v-list> component, expecting it to work just like other components. However, you notice that while the visual representation of selection changes, the underlying state does not update as intended. This can leave you puzzled and searching for a solution.

Example Scenario

Here’s a simplified setup of the issue you've encountered:

[[See Video to Reveal this Text or Code Snippet]]

Expectedly, selection should update when the user clicks on different list items. However, users report the variable does not change, despite the UI indicating a selection change.

The Solution: Using Click Events

After digging through Vuetify's features, you'll discover that the solution lies in utilizing an @ click event combined with the :active attribute of <v-list-item>. This method is not only straightforward but also allows for easier handling of selections within your application.

Step-by-Step Implementation

Create a Click Event: Instead of relying on v-model, you'll set up a click event handler on each <v-list-item> to update the selection state directly.

Employ Active State: Use the :active property to highlight the currently selected item visually.

Updated Template:

Here's how the new template structure might look:

[[See Video to Reveal this Text or Code Snippet]]

Script Section:

In your script, ensure you are using ref from Vue's composition API to maintain reactivity:

[[See Video to Reveal this Text or Code Snippet]]

Why This Works

Direct Interaction: The @ click handler directly assigns the selected item's value to the selected reactive reference.

Visual Feedback: The :active property dynamically applies the active class to the list item that is currently selected, providing users with immediate visual feedback on their selection.

Advantages of This Approach

Flexibility: It allows for more control over selection behavior, such as handling multiple selections, if necessary.

Simplicity: This method is easier to understand and manage compared to the v-model approach in this particular context.

Conclusion

Working with Vuetify and managing list selections doesn't need to be a hassle. By using click events and leveraging Vuetify's features, you can effectively capture user selections. Implementing this method will not only streamline your code but also enhance user interaction within your applications. So the next time you're creating a list in Vuetify, remember: skip v-model, embrace Click Events!