可拖动元素必须有一个项目槽

Question

我试图在我的 Notebook 应用程序中使用 vuedraggable，但在添加可拖动组件时出现此错误。这是代码和错误。我将不胜感激。

Here is the error message i am getting.

错误：可拖动元素必须有一个项目槽在计算节点 (webpack-internal:///./node_modules/vuedraggable/dist/vuedraggable.umd.js:4483:11) 在 computeComponentStructure (webpack-internal:///./node_modules/vuedraggable/dist/vuedraggable.umd.js:4525:15) 在 Proxy.render (webpack-internal:///./node_modules/vuedraggable/dist/vuedraggable.umd.js:4644:32) 在 renderComponentRoot (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:965:44) 在 componentEffect (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4382:53) 在 reactiveEffect (webpack-internal:///./node_modules/@vue/reactivity/dist/reactivity.esm-bundler.js:71:24) 效果 (webpack-internal:///./node_modules/@vue/reactivity/dist/reactivity.esm-bundler.js:46:9) 在 setupRenderEffect (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4365:89) 在 mountComponent (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4324:9) 在 processComponent (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:4284:17)

I am not using the vuedraggable component on my app.vue instead am passing it as a component from my todo.vue file.

任何帮助都会很棒。谢谢

Answer 1

只要用 <template #item> 标签包围您的项目，错误告诉您 draggeable 组件内必须始终有一个名为 item.

的插槽

在 Vue 3 中，您使用 #{slotName}

将模板分配给插槽

检查文档中的 this 演示

示例：

<draggable
      :list="list"
      :disabled="!enabled"
      item-key="name"
      class="list-group"
      ghost-class="ghost"
      :move="checkMove"
      @start="dragging = true"
      @end="dragging = false"
    >
      <template #item="{ element }">
        <div class="list-group-item" :class="{ 'not-draggable': !enabled }">
          {{ element.name }}
        </div>
      </template>
</draggable>

可拖动元素必须有一个项目槽

draggable element must have an item slot

vue.js

vue-component

vuedraggable