How to use Vue to implement an editable data table?

With the continuous development of front-end technology, data tables have become one of the important tools for enterprise management and data display. In daily development, sometimes it is necessary to modify or add data in the data table. At this time, it is necessary to implement an editable data table. This article will introduce how to use Vue to implement an editable data table.

1. Implementation ideas

When implementing the editable data table function, we need to consider the following points:

1. Data presentation: Render data to the table in for display and editing.
2. Table editing: Edit data in the table.
3. Data submission: Submit the edited data to the background or perform other operations.

Based on the above ideas, we can create an application containing a data table component through Vue to achieve the functions we need.

2. Data presentation

First of all, in Vue we need to implement the data table through components. Since we are using an editable data table, related elements such as tables, data columns, and data rows need to be created in the component. The following is a basic example of the element structure of the editable data table component:

<template>
  <table>
    <thead>
      <tr>
        <th v-for="col in columns">{{col.title}}</th>
      </tr>
    </thead>
    <tbody>
      <tr v-for="(row, index) in rows" :key="index">
        <td v-for="col in columns">
          {{row[col.key]}}
        </td>
      </tr>
    </tbody>
  </table>
</template>

In the above code, we define two important attributes: columns and rows. columns is used to define the columns in the table, including titles, key names, etc.; rows is used to render the data in the table data rows.

3. Table editing

Next, we need to implement the table editing function. In order to make the data row editable, we need to add an editable attribute to the component to identify whether the current data row is editable. When editable is true, table data rows can be edited. Here is an updated version of the component code:

<template>
  <table>
    <thead>
      <tr>
        <th v-for="col in columns">{{col.title}}</th>
      </tr>
    </thead>
    <tbody>
      <tr v-for="(row, index) in rows" :key="index" :class="{editable: row.editable}">
        <td v-for="col in columns">
          <template v-if="row.editable">
            <input v-model="row[col.key]">
          </template>
          <template v-else>{{row[col.key]}}</template>
        </td>
        <td>
          <button @click="editRow(index)">编辑</button>
          <button @click="saveRow(index)">保存</button>
        </td>
      </tr>
    </tbody>
  </table>
</template>

In the above code, we added a button and controlled the data through the editRow() and saveRow() methods The editing status of the row. When the edit button is clicked, we set the editable attribute of the row to true, and the table enters the editing state, and the input label is displayed for editing data. When the save button is clicked, we save the data. After the saving is completed, set the editable attribute of the row to false and exit the editing state.

4. Data submission

After completing the editing of the data, we need to submit the data to the background for saving or other operations. At this time, we can achieve this by adding a saveData() method to the component. In this method, we can submit the edited data to the background through Ajax requests. The code structure is as follows:

...省略前面代码...
methods: {
  editRow (index) {
    this.rows[index].editable = true
  },
  saveRow (index) {
    this.rows[index].editable = false
  },
  saveData () {
    // 提交数据到后台
    // ...
  }
}

5. Complete code

Finally, we integrate all the above codes to form a complete editable data table component. The complete code is as follows:

<template>
  <table>
    <thead>
      <tr>
        <th v-for="col in columns">{{col.title}}</th>
      </tr>
    </thead>
    <tbody>
      <tr v-for="(row, index) in rows" :key="index" :class="{editable: row.editable}">
        <td v-for="col in columns">
          <template v-if="row.editable">
            <input v-model="row[col.key]">
          </template>
          <template v-else>{{row[col.key]}}</template>
        </td>
        <td>
          <button @click="editRow(index)">编辑</button>
          <button @click="saveRow(index)">保存</button>
        </td>
      </tr>
    </tbody>
  </table>
</template>

<script>
export default {
  props: {
    columns: {
      type: Array,
      required: true
    },
    rows: {
      type: Array,
      required: true
    }
  },
  methods: {
    editRow (index) {
      this.rows[index].editable = true
    },
    saveRow (index) {
      this.rows[index].editable = false
    },
    saveData () {
      // 提交数据到后台
      // ...
    }
  }
}
</script>

6. Summary

This article introduces how to use Vue to implement an editable data table, and realizes the three functions of data presentation, table editing and data submission. . In actual use, we can further improve the functionality of the component and optimize its performance according to our own needs to better meet actual needs.

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