目录
一、背景
页面需要用到表格采集用户数据，提交时进行表单校验；即表单中嵌套着表格，保存时进行表单校验
二、功能实现
2.1、el-form和el-table嵌套说明
① **:model="formData"**给表单绑定数据，formData是表单的数据对象
② 表单数据对象formData 中定义的tableData是表单内嵌套的表格显示数据
③ rules为表单绑定的校验规则
④**:prop="'tableData.' + scope.$index + '.name'"** 绑定传入Form 组件的 model 中对应的字段name
⑤ **:rules="rules.name"**绑定表单校验规则
⑥ 整个html结构是一个大表单 el-form里边嵌套的el-table，而el-table中又嵌套了表单项 el-form-item支持编辑。
备注：大多情况下prop会按照惯有思维直接写入字段，而这里是动态绑定的，另外一定要记得每项动态写入rules来进行绑定表单校验
2.2、具体代码
javascript
<template>
<div>
<el-form
:model="formData"
ref="formRef"
:rules="rules"
label-width="108px"
:inline="true"
>
<el-table
:data="formData.tableData"
style="width: 100%" border
>
<el-table-column type="index" width="55" align="center">
</el-table-column>
<el-table-column label="姓名" prop="name" resizable align="center" header-align="center">
<template slot-scope="scope">
<el-form-item :prop="'tableData.' + scope.$index + '.name'" :rules="rules.name">
<el-input type="text" size="small" placeholder="请输入姓名" v-model="scope.row.name"></el-input>
</el-form-item>
</template>
</el-table-column>
<el-table-column label="年龄" prop="age" resizable align="center" header-align="center">
<template slot-scope="scope">
<el-form-item :prop="'tableData.' + scope.$index + '.age'" :rules="rules.age">
<el-input type="text" size="small" placeholder="请输入年龄" v-model="scope.row.age"></el-input>
</el-form-item>
</template>
</el-table-column>
<el-table-column label="性别" prop="sex" resizable align="center" header-align="center">
<template slot-scope="scope">
<el-form-item :prop="'tableData.' + scope.$index + '.sex'" :rules="rules.sex">
<el-input type="text" size="small" placeholder="请输入性别" v-model="scope.row.sex"></el-input>
</el-form-item>
</template>
</el-table-column>
</el-table>
<el-form-item class="footer">
<el-button type="primary" @click="save">保存</el-button>
<el-button>取消</el-button>
</el-form-item>
</el-form>
</div>
</template>
<script>
export default{
data(){
return{
formData:{
tableData:[
{name:'张三',age:18,sex:''},
{name:'李四',age:19,sex:''},
]
},
rules:{
name:[
{ required: true, message: '请输入姓名', trigger: 'blur' },
],
age:[
{ required: true, message: '请输入年龄', trigger: 'blur' },
],
sex:[
{ required: true, message: '请输入性别', trigger: 'blur' },
],
}
}
},
methods:{
//保存
save(){
this.$refs.formRef.validate((valid) => {
console.log('valid',valid);
if(valid){
//如果valid为true，表示校验通过，可以提交表单，调取接口进行保存
console.log('表单校验通过');
}else {
this.$message.warning("请填写完整的数据");
}
})
},
}
}
</script>
<style lang="scss" scoped>
.footer{
margin-top: 50px;
}
</style>三、实际项目应用
3.1、增加添加与删除操作
**需求：**表格增加操作项，具有添加和删除按钮，第一项无法删除，点击添加时，动态增加表格的行数，点击删除的时候，删除表格的行数据。
3.2、添加和删除代码
结构：直接添加一个表格项
javascript
<el-table-column label="操作" resizable align="center" header-align="center">
<template slot-scope="{$index}">
<el-button type="primary" icon="el-icon-plus" circle @click="addTable()" v-if="$index == 0"></el-button>
<el-button icon="el-icon-minus" circle @click="delTable($index)" v-if="$index > 0"></el-button>
</template>
</el-table-column>
javascript
methods:{
//添加
addTable(){
let newArr = [
{
name:'',
age:'',
sex:''
}
]
this.formData.tableData.push(...newArr)
},
//删除
delTable(i){
this.formData.tableData.splice(i,1)
}
}3.3、完整代码
javascript
<template>
<div>
<el-form
:model="formData"
ref="formRef"
:rules="rules"
label-width="108px"
:inline="true"
>
<el-table
:data="formData.tableData"
style="width: 100%" border
>
<el-table-column type="index" width="55" align="center">
</el-table-column>
<el-table-column label="姓名" prop="name" resizable align="center" header-align="center">
<template slot-scope="scope">
<el-form-item :prop="'tableData.' + scope.$index + '.name'" :rules="rules.name">
<el-input type="text" size="small" placeholder="请输入姓名" v-model="scope.row.name"></el-input>
</el-form-item>
</template>
</el-table-column>
<el-table-column label="年龄" prop="age" resizable align="center" header-align="center">
<template slot-scope="scope">
<el-form-item :prop="'tableData.' + scope.$index + '.age'" :rules="rules.age">
<el-input type="text" size="small" placeholder="请输入年龄" v-model="scope.row.age"></el-input>
</el-form-item>
</template>
</el-table-column>
<el-table-column label="性别" prop="sex" resizable align="center" header-align="center">
<template slot-scope="scope">
<el-form-item :prop="'tableData.' + scope.$index + '.sex'" :rules="rules.sex">
<el-input type="text" size="small" placeholder="请输入性别" v-model="scope.row.sex"></el-input>
</el-form-item>
</template>
</el-table-column>
<el-table-column label="操作" resizable align="center" header-align="center">
<template slot-scope="{$index}">
<el-button type="primary" icon="el-icon-plus" circle @click="addTable()" v-if="$index == 0"></el-button>
<el-button icon="el-icon-minus" circle @click="delTable($index)" v-if="$index > 0"></el-button>
</template>
</el-table-column>
</el-table>
<el-form-item class="footer">
<el-button type="primary" @click="save">保存</el-button>
<el-button>取消</el-button>
</el-form-item>
</el-form>
</div>
</template>
<script>
export default{
data(){
return{
formData:{
tableData:[
{name:'张三',age:18,sex:'男'},
{name:'李四',age:19,sex:''},
]
},
rules:{
name:[
{ required: true, message: '请输入姓名', trigger: 'blur' },
],
age:[
{ required: true, message: '请输入年龄', trigger: 'blur' },
],
sex:[
{ required: true, message: '请输入性别', trigger: 'blur' },
],
}
}
},
methods:{
//保存
save(){
this.$refs.formRef.validate((valid) => {
console.log('valid',valid);
if(valid){
//如果valid为true，表示校验通过，可以提交表单，调取接口进行保存
console.log('表单校验通过');
}else {
this.$message.warning("请填写完整的数据");
}
})
},
//添加
addTable(){
let newArr = [
{
name:'',
age:'',
sex:''
}
]
this.formData.tableData.push(...newArr)
},
//删除
delTable(i){
this.formData.tableData.splice(i,1)
}
}
}
</script>
<style>
.footer{
margin-top: 50px;
}
</style>3.4、实际效果
**最后：**👏👏 😀😀😀 👍👍