Implementation method of table display and data filtering in UniApp

UniApp implementation method of table display and data filtering

1. Introduction
UniApp is a cross-platform framework that supports multi-terminal development. It can be developed using Vue.js and supports a set of codes. Compiled into applications for iOS, Android, H5 and other platforms. In actual development, it is a very common requirement to display tables and be able to filter table data. This article will introduce how to implement table display and data filtering in UniApp, and attach corresponding code examples.

2. Table display
To display tables in UniApp, you can use the <uni-list></uni-list> and <uni-list-item></uni-list-item> components. Layout, use components such as <uni-title></uni-title> or <uni-cell></uni-cell> to render the header, use <uni-cell-group></uni-cell-group> and <uni-cell></uni-cell> and other components to present the table content. The following is a simple table display example:

<template>
  <view>
    <uni-list>
      <uni-list-item>
        <uni-cell-group>
          <uni-cell title="姓名"></uni-cell>
          <uni-cell title="年龄"></uni-cell>
          <uni-cell title="性别"></uni-cell>
        </uni-cell-group>
      </uni-list-item>
      <uni-list-item v-for="(item, index) in list" :key="index">
        <uni-cell-group>
          <uni-cell title="{{item.name}}"></uni-cell>
          <uni-cell title="{{item.age}}"></uni-cell>
          <uni-cell title="{{item.gender}}"></uni-cell>
        </uni-cell-group>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      list: [
        { name: '张三', age: 18, gender: '男' },
        { name: '李四', age: 20, gender: '女' },
        { name: '王五', age: 22, gender: '男' }
      ]
    }
  }
}
</script>

In the above example, <uni-list-item></uni-list-item> is combined with <uni-cell-group></uni-cell-group> Used to implement the layout of the table, <uni-cell></uni-cell> is used to present the content of each cell. By looping rendering<uni-list-item></uni-list-item>, table contents can be displayed dynamically.

3. Data filtering
In table display, table data usually needs to be filtered. UniApp provides the uni.filter method, which can be used to filter array data. The following is a simple data filtering example:

<template>
  <view>
    <uni-input v-model="keyword" placeholder="请输入关键词"></uni-input>
    <uni-button @click="filterData">查询</uni-button>
    <uni-list>
      <uni-list-item>
        <uni-cell-group>
          <uni-cell title="姓名"></uni-cell>
          <uni-cell title="年龄"></uni-cell>
          <uni-cell title="性别"></uni-cell>
        </uni-cell-group>
      </uni-list-item>
      <uni-list-item v-for="(item, index) in filteredList" :key="index">
        <uni-cell-group>
          <uni-cell title="{{item.name}}"></uni-cell>
          <uni-cell title="{{item.age}}"></uni-cell>
          <uni-cell title="{{item.gender}}"></uni-cell>
        </uni-cell-group>
      </uni-list-item>
    </uni-list>
  </view>
</template>

<script>
export default {
  data() {
    return {
      list: [
        { name: '张三', age: 18, gender: '男' },
        { name: '李四', age: 20, gender: '女' },
        { name: '王五', age: 22, gender: '男' }
      ],
      keyword: '',
      filteredList: []
    }
  },
  methods: {
    filterData() {
      this.filteredList = uni.filter(this.list, (item) => {
        return item.name.includes(this.keyword)
      })
    }
  }
}
</script>

In the above example, the keywords entered by the user are obtained through the uni-input component, and then through the uni-button Click on events to filter data. In the filterData method, use the uni.filter method to filter the list, assign the result to the filteredList, and then render it through a loopfilteredList to dynamically display filtered data.

The above is a simple example of implementing table display and data filtering in UniApp. You can expand and modify it according to actual needs, such as adding more filtering conditions, implementing sorting and other functions. Hope this article can be helpful to you.

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