Element UI: Setup, Forms & Tables

Element UI (by ElemeFE) is a Vue 2 component library especially popular for admin panels and dashboards -- its Vue 3 continuation is the separate but related Element Plus package. Element UI has a hard dependency on Vue 2 internals and does not work with Vue 3 at all.

Registration

// Global registration -- every component available app-wide,
// but bundles the whole library
import Vue from 'vue';
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';

Vue.use(ElementUI);

// Per-component import -- more granular bundle control
import { Button, Input } from 'element-ui';
Vue.component(Button.name, Button);
Vue.component(Input.name, Input);

// el- prefix distinguishes Element UI tags from plain HTML/other components
// <el-button>, <el-input>, <el-table>, <el-dialog>

Forms & Validation

<template>
  <el-form :model="form" :rules="rules" ref="form">
    <!-- prop links this form-item to form.email AND rules.email -->
    <el-form-item prop="email" label="Email">
      <el-input v-model="form.email" />
    </el-form-item>

    <el-form-item prop="role" label="Role">
      <el-select v-model="form.role" filterable placeholder="Select role">
        <el-option label="Admin" value="admin" />
        <el-option label="Editor" value="editor" />
      </el-select>
    </el-form-item>

    <el-button type="primary" @click="submit">Save</el-button>
  </el-form>
</template>

<script>
export default {
  data() {
    return {
      form: { email: '', role: '' },
      rules: {
        email: [
          { required: true, message: 'Email is required', trigger: 'blur' },
          { type: 'email', message: 'Invalid email', trigger: 'blur' },
        ],
      },
    };
  },
  methods: {
    submit() {
      this.$refs.form.validate((valid) => {
        if (!valid) return;
        // proceed with save
        this.$message.success('Saved successfully');
      });
    },
  },
};
</script>

Data Tables

<el-table :data="users" @selection-change="handleSelection">
  <el-table-column type="selection" width="55" />
  <el-table-column prop="name" label="Name" sortable />
  <el-table-column prop="email" label="Email" />
  <el-table-column label="Actions">
    <template slot-scope="scope">
      <el-button size="mini" @click="edit(scope.row)">Edit</el-button>
    </template>
  </el-table-column>
</el-table>

<el-pagination
  :total="totalUsers"
  :page-size="20"
  @current-change="handlePageChange"
/>