How to optimize the table display and hidden column function in Vue development

How to optimize the table display and hidden column function in Vue development

In Vue development, the table is a common UI component, which is used to display a large amount of data and provide data search, sorting, and paging. and other functions. One of the common requirements is to show or hide certain columns in a table so that the table's display content can be dynamically adjusted according to the user's needs. This article will introduce how to optimize the table display and hidden column function in Vue development to improve user experience and development efficiency.

1. Use the v-if directive to dynamically display or hide columns

Vue provides the v-if directive to dynamically render DOM elements based on conditions. We can dynamically show or hide columns based on user selection using the v-if directive. First, define a default array of column objects in the table to control the display status of each column:

data() {
  return {
    columns: [
      { label: '列1', key: 'column1', visible: true },
      { label: '列2', key: 'column2', visible: true },
      { label: '列3', key: 'column3', visible: true },
    ]
  }
},

Use the v-if directive in th and td of the table to decide whether to use the visible attribute of the column object. Render the column:

<th v-for="column in columns" v-if="column.visible">{{ column.label }}</th>
<td v-for="column in columns" v-if="column.visible">{{ rowData[column.key] }}</td>

When the user chooses to hide some columns, just update the visible attribute of the corresponding column in the columns array to false to dynamically hide the column.

2. Use the checkbox component to control the display and hiding of columns

In addition to using the v-if directive to dynamically display or hide columns, we can also add a checkbox component for Let the user choose which columns to show or hide. We can use Vue's responsive data to bind the selected state of the checkbox to control the display or hiding of columns.

First, add a checkbox component to the table:

<input type="checkbox" v-model="showColumn1">显示列1
<input type="checkbox" v-model="showColumn2">显示列2
<input type="checkbox" v-model="showColumn3">显示列3

Then, use the computed attribute and v-if directive in th and td of the table to dynamically render columns based on the selected state of the checkbox:

<th v-if="showColumn1">{{ columns[0].label }}</th>
<td v-if="showColumn1">{{ rowData.columns[0].key }}</td>
<th v-if="showColumn2">{{ columns[1].label }}</th>
<td v-if="showColumn2">{{ rowData.columns[1].key }}</td>
<th v-if="showColumn3">{{ columns[2].label }}</th>
<td v-if="showColumn3">{{ rowData.columns[2].key }}</td>

In this method, when the user chooses to show or hide a column, the binding data of the corresponding checkbox will be updated, thus triggering the recalculation of the computed attribute, and then deciding whether to render the corresponding column. .

3. Use the vue-tables-2 plug-in to implement more advanced display and hidden column functions

The above method can meet the basic needs of displaying and hiding columns, but when the columns that need to be processed When there are more or more complex requirements, we can use the vue-tables-2 plug-in, which provides more powerful functions, such as dragging columns to adjust the order, freezing columns, merging columns, etc.

Install the vue-tables-2 plug-in:

npm install vue-tables-2

Register the vue-tables-2 plug-in in Vue:

import { ServerTable, Event } from 'vue-tables-2';

Vue.use(ServerTable, {}, false, 'bootstrap4', 'default');

Then, use vue-tables-2 in the table Components provided by the plug-in and configure relevant parameters:

<server-table :columns="columns" :options="options"></server-table>

...

data() {
  return {
    columns: [
      { name: '列1', title: '列1', visible: true },
      { name: '列2', title: '列2', visible: true },
      { name: '列3', title: '列3', visible: true },
    ],
    options: {
      ...
      columnsDropdown: true,
      columnsDisplay: ['column1', 'column2', 'column3'],
      columnsClasses: {
        column1: 'custom-class',
        column2: 'custom-class',
        column3: 'custom-class',
      },
      customFilters: [' column1', 'column2', 'column3'],
      ...
    }
  }
},

By configuring parameters such as columns and options, we can achieve more advanced functions of showing and hiding columns, and can flexibly adjust the display order of columns, set column styles, etc. .

By optimizing the table display and hidden column function in Vue development, we can improve user experience and development efficiency. The three methods mentioned above each have their own advantages and disadvantages. Choose the appropriate method according to your specific needs to achieve the function of showing and hiding columns. The author hopes to help readers better deal with the problem of displaying and hiding columns in tables during Vue development.

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