标题中带有过滤器的Bootstrap-Vue B表 [英] Bootstrap-vue b-table with filter in header

问题描述

我有一个用bootstrap-vue生成的表，该表显示了系统搜索的结果.

I have a table generated with bootstrap-vue that shows the results of a system search.

结果表向用户显示记录，用户可以对记录进行排序和过滤.

The Results Table shows the records to the user, and the user can sort them and filter them.

如何在用bootstrap-vue <b-table>元素生成的表头<th>下添加搜索字段?

How can I add the search field underneath the table header <th> generated with the bootstrap-vue <b-table> element?

当前表的屏幕截图:

想要的表的模型:

推荐答案

您可以使用top-row插槽自定义自己的第一行.参见下面的简单示例.

You can use the top-row slot to customise your own first-row. See below for a bare-bones example.

new Vue({
  el: '#app',
  data: {
    filters: {
      id: '',
      issuedBy: '',
      issuedTo: ''
    },
    items: [{id:1234,issuedBy:'Operator',issuedTo:'abcd-efgh'},{id:5678,issuedBy:'User',issuedTo:'ijkl-mnop'}]
  },
  computed: {
    filtered () {
      const filtered = this.items.filter(item => {
        return Object.keys(this.filters).every(key =>
            String(item[key]).includes(this.filters[key]))
      })
      return filtered.length > 0 ? filtered : [{
        id: '',
        issuedBy: '',
        issuedTo: ''
      }]
    }
  }
})

<link type="text/css" rel="stylesheet" href="//unpkg.com/bootstrap/dist/css/bootstrap.min.css"/><link type="text/css" rel="stylesheet" href="//unpkg.com/bootstrap-vue@latest/dist/bootstrap-vue.css"/><script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.min.js"></script><script src="//unpkg.com/babel-polyfill@latest/dist/polyfill.min.js"></script><script src="//unpkg.com/bootstrap-vue@latest/dist/bootstrap-vue.js"></script>

<div id="app">
<b-table striped show-empty :items="filtered">
  <template slot="top-row" slot-scope="{ fields }">
    <td v-for="field in fields" :key="field.key">
      <input v-model="filters[field.key]" :placeholder="field.label">
    </td>
  </template>
</b-table>
</div>

注意:我使用了计算属性来过滤项目，而不是使用b-table中的:filter道具，因为如果所有项目都被滤除(包括您自定义的第一行.这样，如果结果为空，我可以提供一个虚拟数据行.

Note: I've used a computed property to filter the items instead of the :filter prop in b-table because it doesn't render rows if all the items are filtered out, including your custom first-row. This way I can provide a dummy data row if the result is empty.

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