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HomeWeb Front-endVue.jsHow to drag and drop data in Vue technology development
How to drag and drop data in Vue technology developmentOct 09, 2023 pm 12:50 PM
vuedataDrag and drop sort

How to drag and drop data in Vue technology development

How to drag and drop sort data in Vue technology development requires specific code examples

In modern Web development, drag and drop sorting is a common functional requirement . As a popular JavaScript framework, Vue provides a wealth of tools and functions to simplify the development of drag-and-drop sorting. This article will introduce how to use Vue technology to drag and drop data and provide some specific code examples.

First, we need to install Vue and some related dependencies, such as vue-draggable. In the Vue project, you can use npm or yarn to install:

npm install vue
npm install vue-draggable

After the installation is complete, we can start writing code. Suppose we have a list to be sorted. Each item in the list has a unique id and a text content to be displayed. We can use a Vue component to render this list and handle the drag and drop sorting logic.

First, in the <template></template> part of the Vue component, we can use the v-for directive to traverse the list to be sorted, and use v The -bind directive binds the id of each item to the data-id attribute of the HTML element. In this way, during the dragging process, we can use this attribute to get the id of the dragged item.

<template>
  <div>
    <div v-for="item in items" :key="item.id" :data-id="item.id">{{ item.text }}</div>
  </div>
</template>

Then, in the <script></script> section of the Vue component, we can define the list to be sorted in the data attribute and mountedUse Sortable in the life cycle hook to initialize the sortable list. Sortable is a plug-in provided in the vue-draggable library, which can easily implement the drag-and-drop sorting function.

<script>
import Sortable from 'sortablejs';

export default {
  data() {
    return {
      items: [
        { id: 1, text: 'Item 1' },
        { id: 2, text: 'Item 2' },
        { id: 3, text: 'Item 3' },
        { id: 4, text: 'Item 4' },
        // ...
      ],
    };
  },
  mounted() {
    const container = document.querySelector('div'); // 或者使用其他合适的选择器指定容器
    Sortable.create(container, {
      onEnd: this.handleDragEnd,
    });
  },
  methods: {
    handleDragEnd(event) {
      const draggedItemId = event.item.getAttribute('data-id');
      // 根据拖拽的项的id进行一些排序逻辑
    },
  },
};
</script>

In the above code, we use the Sortable.create method in the mounted lifecycle hook to create a sortable list. We use the onEnd event to listen for the drag end event, and call the handleDragEnd method to handle the drag end logic. In the handleDragEnd method, we can perform the necessary sorting logic based on the id of the dragged item.

When the user drags an item and releases it, the handleDragEnd method will be called and an event object will be passed in. The HTML element of the dragged item can be obtained through event.item, and the id of the dragged item can be obtained through getAttribute('data-id').

Now, we have completed the basic settings of drag sorting. According to specific business needs, we can perform some sorting logic based on the ID of the dragged item, such as updating data or sending a request. It can be expanded according to the actual situation.

In summary, Vue technology provides a wealth of functions and tools to simplify the development of drag-and-drop sorting. We can use the vue-draggable library to quickly implement a sortable list, and use Vue's data binding and life cycle hooks to handle the drag and drop sorting logic. Through the above code examples, I believe readers will have a deeper understanding of how to drag and drop data in Vue technology.

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