element真的好好用记录一下

表单

在 Form 组件中，每一个表单域由一个 Form-Item 组件构成，表单域中可以放置各种类型的表单控件，包括 Input、Select、Checkbox、Radio、Switch、DatePicker、TimePicker

<el-form ref="form" :model="form" label-width="80px">
  <el-form-item label="活动名称">
    <el-input v-model="form.name"></el-input>
  </el-form-item>
  <el-form-item label="活动区域">
    <el-select v-model="form.region" placeholder="请选择活动区域">
      <el-option label="区域一" value="shanghai"></el-option>
      <el-option label="区域二" value="beijing"></el-option>
    </el-select>
  </el-form-item>
  <el-form-item label="活动时间">
    <el-col :span="11">
      <el-date-picker type="date" placeholder="选择日期" v-model="form.date1" style="width: 100%;"></el-date-picker>
    </el-col>
    <el-col class="line" :span="2">-</el-col>
    <el-col :span="11">
      <el-time-picker placeholder="选择时间" v-model="form.date2" style="width: 100%;"></el-time-picker>
    </el-col>
  </el-form-item>
  <el-form-item label="即时配送">
    <el-switch v-model="form.delivery"></el-switch>
  </el-form-item>
  <el-form-item label="活动性质">
    <el-checkbox-group v-model="form.type">
      <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
      <el-checkbox label="地推活动" name="type"></el-checkbox>
      <el-checkbox label="线下主题活动" name="type"></el-checkbox>
      <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
    </el-checkbox-group>
  </el-form-item>
  <el-form-item label="特殊资源">
    <el-radio-group v-model="form.resource">
      <el-radio label="线上品牌商赞助"></el-radio>
      <el-radio label="线下场地免费"></el-radio>
    </el-radio-group>
  </el-form-item>
  <el-form-item label="活动形式">
    <el-input type="textarea" v-model="form.desc"></el-input>
  </el-form-item>
  <el-form-item>
    <el-button type="primary" @click="onSubmit">立即创建</el-button>
    <el-button>取消</el-button>
  </el-form-item>
</el-form>
<script>
  export default {
    data() {
      return {
        form: {
          name: '',
          region: '',
          date1: '',
          date2: '',
          delivery: false,
          type: [],
          resource: '',
          desc: ''
        }
      }
    },
    methods: {
      onSubmit() {
        console.log('submit!');
      }
    }
  }
</script>

表单验证

Form 组件提供了表单验证的功能，只需要通过 rules 属性传入约定的验证规则，并将 Form-Item 的 prop 属性设置为需校验的字段名即可。校验规则参见 async-validator

<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
  <el-form-item label="活动名称" prop="name">
    <el-input v-model="ruleForm.name"></el-input>
  </el-form-item>
  <el-form-item label="活动区域" prop="region">
    <el-select v-model="ruleForm.region" placeholder="请选择活动区域">
      <el-option label="区域一" value="shanghai"></el-option>
      <el-option label="区域二" value="beijing"></el-option>
    </el-select>
  </el-form-item>
  <el-form-item label="活动时间" required>
    <el-col :span="11">
      <el-form-item prop="date1">
        <el-date-picker type="date" placeholder="选择日期" v-model="ruleForm.date1" style="width: 100%;"></el-date-picker>
      </el-form-item>
    </el-col>
    <el-col class="line" :span="2">-</el-col>
    <el-col :span="11">
      <el-form-item prop="date2">
        <el-time-picker placeholder="选择时间" v-model="ruleForm.date2" style="width: 100%;"></el-time-picker>
      </el-form-item>
    </el-col>
  </el-form-item>
  <el-form-item label="即时配送" prop="delivery">
    <el-switch v-model="ruleForm.delivery"></el-switch>
  </el-form-item>
  <el-form-item label="活动性质" prop="type">
    <el-checkbox-group v-model="ruleForm.type">
      <el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
      <el-checkbox label="地推活动" name="type"></el-checkbox>
      <el-checkbox label="线下主题活动" name="type"></el-checkbox>
      <el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
    </el-checkbox-group>
  </el-form-item>
  <el-form-item label="特殊资源" prop="resource">
    <el-radio-group v-model="ruleForm.resource">
      <el-radio label="线上品牌商赞助"></el-radio>
      <el-radio label="线下场地免费"></el-radio>
    </el-radio-group>
  </el-form-item>
  <el-form-item label="活动形式" prop="desc">
    <el-input type="textarea" v-model="ruleForm.desc"></el-input>
  </el-form-item>
  <el-form-item>
    <el-button type="primary" @click="submitForm('ruleForm')">立即创建</el-button>
    <el-button @click="resetForm('ruleForm')">重置</el-button>
  </el-form-item>
</el-form>
<script>
  export default {
    data() {
      return {
        ruleForm: {
          name: '',
          region: '',
          date1: '',
          date2: '',
          delivery: false,
          type: [],
          resource: '',
          desc: ''
        },
        rules: {
          name: [
            { required: true, message: '请输入活动名称', trigger: 'blur' },
            { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
          ],
          region: [
            { required: true, message: '请选择活动区域', trigger: 'change' }
          ],
          date1: [
            { type: 'date', required: true, message: '请选择日期', trigger: 'change' }
          ],
          date2: [
            { type: 'date', required: true, message: '请选择时间', trigger: 'change' }
          ],
          type: [
            { type: 'array', required: true, message: '请至少选择一个活动性质', trigger: 'change' }
          ],
          resource: [
            { required: true, message: '请选择活动资源', trigger: 'change' }
          ],
          desc: [
            { required: true, message: '请填写活动形式', trigger: 'blur' }
          ]
        }
      };
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate((valid) => {
          if (valid) {
            alert('submit!');
          } else {
            console.log('error submit!!');
            return false;
          }
        });
      },
      resetForm(formName) {
        this.$refs[formName].resetFields();
      }
    }
  }
</script>

规则

若你想将 "活动名称" 的规则修改为限制为 11 个数字，你可以在 rules 对象中对该字段的验证规则进行修改。请更新 rules 中的 name 规则如下：

javascriptCopy coderules: {
  name: [
    { required: true, message: '请输入活动名称', trigger: 'blur' },
    { pattern: /^\d{11}$/, message: '活动名称必须为11位数字', trigger: 'blur' }
  ],
  // 其他规则...
}

在这里，我们使用了 pattern 规则，该规则接受一个正则表达式作为参数。正则表达式 ^\d{11}$ 表示字符串必须以 11 个数字开头和结束，确保输入的内容为 11 位数字。

若你想将 "活动名称" 的规则修改为限制为八位数字，并且前四位必须是 "2022"，你可以更新 rules 对象中的 name 规则如下：

javascriptCopy coderules: {
  name: [
    { required: true, message: '请输入活动名称', trigger: 'blur' },
    { pattern: /^2022\d{4}$/, message: '活动名称必须为八位数字，前四位必须是2022', trigger: 'blur' }
  ],
  // 其他规则...
}

在这里，我们使用了 pattern 规则，该规则接受一个正则表达式作为参数。正则表达式 ^2022\d{4}$ 表示字符串必须以 "2022" 开头，后跟四位数字，确保输入的内容符合要求。

表格

当el-table元素中注入data对象数组后，在el-table-column中用prop属性来对应对象中的键名即可填入数据，用label属性来定义表格的列名。可以使用width属性来定义列宽。

 <template>
    <el-table
      :data="tableData"
      style="width: 100%">
      <el-table-column
        prop="date"
        label="日期"
        width="180">
      </el-table-column>
      <el-table-column
        prop="name"
        label="姓名"
        width="180">
      </el-table-column>
      <el-table-column
        prop="address"
        label="地址">
      </el-table-column>
    </el-table>
  </template>

  <script>
    export default {
      data() {
        return {
          tableData: [{
            date: '2016-05-02',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1518 弄'
          }, {
            date: '2016-05-04',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1517 弄'
          }, {
            date: '2016-05-01',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1519 弄'
          }, {
            date: '2016-05-03',
            name: '王小虎',
            address: '上海市普陀区金沙江路 1516 弄'
          }]
        }
      }
    }
  </script>

表格带有操作按钮

固定列需要使用fixed属性，它接受 Boolean 值或者leftright，表示左边固定还是右边固定。
<template>
  <el-table
    :data="tableData"
    border
    style="width: 100%">
    <el-table-column
      fixed
      prop="date"
      label="日期"
      width="150">
    </el-table-column>
    <el-table-column
      prop="name"
      label="姓名"
      width="120">
    </el-table-column>
    <el-table-column
      prop="province"
      label="省份"
      width="120">
    </el-table-column>
    <el-table-column
      prop="city"
      label="市区"
      width="120">
    </el-table-column>
    <el-table-column
      prop="address"
      label="地址"
      width="300">
    </el-table-column>
    <el-table-column
      prop="zip"
      label="邮编"
      width="120">
    </el-table-column>
    <el-table-column
      fixed="right"
      label="操作"
      width="100">
      <template slot-scope="scope">
        <el-button @click="handleClick(scope.row)" type="text" size="small">查看</el-button>
        <el-button type="text" size="small">编辑</el-button>
      </template>
    </el-table-column>
  </el-table>
</template>

<script>
  export default {
    methods: {
      handleClick(row) {
        console.log(row);
      }
    },

    data() {
      return {
        tableData: [{
          date: '2016-05-02',
          name: '王小虎',
          province: '上海',
          city: '普陀区',
          address: '上海市普陀区金沙江路 1518 弄',
          zip: 200333
        }, {
          date: '2016-05-04',
          name: '王小虎',
          province: '上海',
          city: '普陀区',
          address: '上海市普陀区金沙江路 1517 弄',
          zip: 200333
        }, {
          date: '2016-05-01',
          name: '王小虎',
          province: '上海',
          city: '普陀区',
          address: '上海市普陀区金沙江路 1519 弄',
          zip: 200333
        }, {
          date: '2016-05-03',
          name: '王小虎',
          province: '上海',
          city: '普陀区',
          address: '上海市普陀区金沙江路 1516 弄',
          zip: 200333
        }]
      }
    }
  }
</script>

对话框

需要设置visible属性，它接收Boolean，当为true时显示 Dialog。Dialog 分为两个部分：body和footer，footer需要具名为footer的slot。title属性用于定义标题，它是可选的，默认值为空。最后，本例还展示了before-close的用法。
<el-button type="text" @click="dialogVisible = true">点击打开 Dialog</el-button>

<el-dialog
  title="提示"
  :visible.sync="dialogVisible"
  width="30%"
  :before-close="handleClose">
  <span>这是一段信息</span>
  <span slot="footer" class="dialog-footer">
    <el-button @click="dialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="dialogVisible = false">确 定</el-button>
  </span>
</el-dialog>

<script>
  export default {
    data() {
      return {
        dialogVisible: false
      };
    },
    methods: {
      handleClose(done) {
        this.$confirm('确认关闭？')
          .then(_ => {
            done();
          })
          .catch(_ => {});
      }
    }
  };
</script>

嵌套表单

<el-button type="text" @click="dialogFormVisible = true">打开嵌套表单的 Dialog</el-button>

<el-dialog title="收货地址" :visible.sync="dialogFormVisible">
  <el-form :model="form">
    <el-form-item label="活动名称" :label-width="formLabelWidth">
      <el-input v-model="form.name" autocomplete="off"></el-input>
    </el-form-item>
    <el-form-item label="活动区域" :label-width="formLabelWidth">
      <el-select v-model="form.region" placeholder="请选择活动区域">
        <el-option label="区域一" value="shanghai"></el-option>
        <el-option label="区域二" value="beijing"></el-option>
      </el-select>
    </el-form-item>
  </el-form>
  <div slot="footer" class="dialog-footer">
    <el-button @click="dialogFormVisible = false">取 消</el-button>
    <el-button type="primary" @click="dialogFormVisible = false">确 定</el-button>
  </div>
</el-dialog>

<script>
  export default {
    data() {
      return {
        gridData: [{
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }],
        dialogTableVisible: false,
        dialogFormVisible: false,
        form: {
          name: '',
          region: '',
          date1: '',
          date2: '',
          delivery: false,
          type: [],
          resource: '',
          desc: ''
        },
        formLabelWidth: '120px'
      };
    }
  };
</script>

嵌套表格

<!-- Table -->
<el-button type="text" @click="dialogTableVisible = true">打开嵌套表格的 Dialog</el-button>

<el-dialog title="收货地址" :visible.sync="dialogTableVisible">
  <el-table :data="gridData">
    <el-table-column property="date" label="日期" width="150"></el-table-column>
    <el-table-column property="name" label="姓名" width="200"></el-table-column>
    <el-table-column property="address" label="地址"></el-table-column>
  </el-table>
</el-dialog>

<script>
  export default {
    data() {
      return {
        gridData: [{
          date: '2016-05-02',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-04',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-01',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }, {
          date: '2016-05-03',
          name: '王小虎',
          address: '上海市普陀区金沙江路 1518 弄'
        }],
        dialogTableVisible: false,
        dialogFormVisible: false,
        form: {
          name: '',
          region: '',
          date1: '',
          date2: '',
          delivery: false,
          type: [],
          resource: '',
          desc: ''
        },
        formLabelWidth: '120px'
      };
    }
  };
</script>

按钮

使用type、plain、round和circle属性来定义 Button 的样式。

<el-row>
  <el-button>默认按钮</el-button>
  <el-button type="primary">主要按钮</el-button>
  <el-button type="success">成功按钮</el-button>
  <el-button type="info">信息按钮</el-button>
  <el-button type="warning">警告按钮</el-button>
  <el-button type="danger">危险按钮</el-button>
</el-row>

<el-row>
  <el-button plain>朴素按钮</el-button>
  <el-button type="primary" plain>主要按钮</el-button>
  <el-button type="success" plain>成功按钮</el-button>
  <el-button type="info" plain>信息按钮</el-button>
  <el-button type="warning" plain>警告按钮</el-button>
  <el-button type="danger" plain>危险按钮</el-button>
</el-row>

<el-row>
  <el-button round>圆角按钮</el-button>
  <el-button type="primary" round>主要按钮</el-button>
  <el-button type="success" round>成功按钮</el-button>
  <el-button type="info" round>信息按钮</el-button>
  <el-button type="warning" round>警告按钮</el-button>
  <el-button type="danger" round>危险按钮</el-button>
</el-row>

<el-row>
  <el-button icon="el-icon-search" circle></el-button>
  <el-button type="primary" icon="el-icon-edit" circle></el-button>
  <el-button type="success" icon="el-icon-check" circle></el-button>
  <el-button type="info" icon="el-icon-message" circle></el-button>
  <el-button type="warning" icon="el-icon-star-off" circle></el-button>
  <el-button type="danger" icon="el-icon-delete" circle></el-button>
</el-row>

日期时间选择器

通过设置type属性为datetime，即可在同一个选择器里同时进行日期和时间的选择。快捷选项的使用方法与 Date Picker 相同。

<template>
  <div class="block">
    <span class="demonstration">默认</span>
    <el-date-picker
      v-model="value1"
      type="datetime"
      placeholder="选择日期时间">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">带快捷选项</span>
    <el-date-picker
      v-model="value2"
      type="datetime"
      placeholder="选择日期时间"
      align="right"
      :picker-options="pickerOptions">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">设置默认时间</span>
    <el-date-picker
      v-model="value3"
      type="datetime"
      placeholder="选择日期时间"
      default-time="12:00:00">
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        pickerOptions: {
          shortcuts: [{
            text: '今天',
            onClick(picker) {
              picker.$emit('pick', new Date());
            }
          }, {
            text: '昨天',
            onClick(picker) {
              const date = new Date();
              date.setTime(date.getTime() - 3600 * 1000 * 24);
              picker.$emit('pick', date);
            }
          }, {
            text: '一周前',
            onClick(picker) {
              const date = new Date();
              date.setTime(date.getTime() - 3600 * 1000 * 24 * 7);
              picker.$emit('pick', date);
            }
          }]
        },
        value1: '',
        value2: '',
        value3: ''
      };
    }
  };
</script>

日期和时间范围

设置type为datetimerange即可选择日期和时间范围

<template>
  <div class="block">
    <span class="demonstration">默认</span>
    <el-date-picker
      v-model="value1"
      type="datetimerange"
      range-separator="至"
      start-placeholder="开始日期"
      end-placeholder="结束日期">
    </el-date-picker>
  </div>
  <div class="block">
    <span class="demonstration">带快捷选项</span>
    <el-date-picker
      v-model="value2"
      type="datetimerange"
      :picker-options="pickerOptions"
      range-separator="至"
      start-placeholder="开始日期"
      end-placeholder="结束日期"
      align="right">
    </el-date-picker>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        pickerOptions: {
          shortcuts: [{
            text: '最近一周',
            onClick(picker) {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 7);
              picker.$emit('pick', [start, end]);
            }
          }, {
            text: '最近一个月',
            onClick(picker) {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 30);
              picker.$emit('pick', [start, end]);
            }
          }, {
            text: '最近三个月',
            onClick(picker) {
              const end = new Date();
              const start = new Date();
              start.setTime(start.getTime() - 3600 * 1000 * 24 * 90);
              picker.$emit('pick', [start, end]);
            }
          }]
        },
        value1: [new Date(2000, 10, 10, 10, 10), new Date(2000, 10, 11, 10, 10)],
        value2: ''
      };
    }
  };
</script>

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