1.基础姿势/自定义姿势
<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px">
<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="年龄" prop="age">
<el-input v-model.number="ruleForm.age"></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>
var checkAge = (rule, value, callback) => {
//console.log(rule.max_age)
if (!value) {
return callback(new Error('年龄不能为空'));
}
if (!Number.isInteger(value)) {
callback(new Error('请输入数字值'));
} else {
if (value < rule.max_age) {
callback(new Error('必须年满18岁'));
} else {
callback();
}
}
};
export default {
data() {
return {
ruleForm: {
name: '',
age:''
},
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' }
],
age: [
{max_age：18， validator: checkAge, trigger: 'blur' }// checkAge自定义规则函数
]
}
};
},
methods: {
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
alert('submit!');
} else {
console.log('error submit!!')
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
}
}
}
</script>
在el-form上绑定rules，rlues为校验规则，在el-form-item上绑定对应的prop。
自定义规则，validator：checkAge，自定义规则的函数。
不啰嗦，详细的可查看element文档http://element-cn.eleme.io/#/zh-CN/component/form。
2.行间校验
<el-form :model="numberValidateForm" ref="numberValidateForm" label-width="100px" class="demo-ruleForm">
<el-form-item
label="年龄"
prop="age"
:rules="[
{ required: true, message: '年龄不能为空'},
{ type: 'number', message: '年龄必须为数字值'}
]">
<el-input type="age" v-model.number="numberValidateForm.age" autocomplete="off"></el-input>
</el-form-item>
可将rule写在各自的el-form-item上
3.行间自定义校验
<el-form :model="numberValidateForm" ref="numberValidateForm" label-width="100px" class="demo-ruleForm">
<el-form-item
label="年龄"
prop="age"
:rules="[
{max_age：18， validator: checkAge, trigger: 'blur' }
]">
<el-input type="age" v-model.number="numberValidateForm.age" autocomplete="off"></el-input>
</el-form-item>
</el-form>
<script>
export default {
data() {
...
},
methods: {
checkAge(rule, value, callback){
//自定义校验规则
//console.log(rule.max_age)
if (!value) {
return callback(new Error('年龄不能为空'));
}
if (!Number.isInteger(value)) {
callback(new Error('请输入数字值'));
} else {
if (value < rule.max_age) {
callback(new Error('必须年满18岁'));
} else {
callback();
}
}
},
......
}
}
</script>
4.行间循环自定义校验
<el-form>
<el-form-item
v-for="(domain, index) in dynamicValidateForm.domains"
:label="'域名' + index"
:key="domain.key"
:prop="`domains.${index}.value`" //绑定的prop
:rules="[
{ required: true, message: '域名不能为空', trigger: 'blur' },
{reg：/^--------$/， validator: checkDomain, trigger: 'blur' }
]"
>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
dynamicValidateForm: {
domains: [
{ value: ''},
{ value: ''},
{ value: ''},
]
}
};
},
methods: {
checkDomain(rule, value, callback){
//自定义校验规则
......
},
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
alert('submit!');
} else {
console.log('error submit!!');
}
});
}
}
}
</script>
