使用ElementUI循环生成的Form表单添加校验
目录
- ElementUI循环生成的Form表单添加校验
- HTML代码片段
- VUE中data中的声明
- 效果图
- ElementUI循环动态生成表单校验问题
ElementUI循环生成的Form表单添加校验
ElementUI 中使用循环生成的form表单需要动态添加校验的规则
在data中定义好需要的rule,使用Element的语法给 :rules 动态绑定
:prop="getAllTableData.${i}.value"
getAllTableData是v-for绑定的数组,i是索引,value是表单绑定的v-model的名称
HTML代码片段
// An highlighted block <!-- dialog --> <el-dialog :title="dialogTitle" :visible.sync="dialogFormVisible" @close="dialogClose" :close-on-click-modal="false" width="40%" class="dialogForm-box" > <el-form label-position="left" label-width="120px" ref="dialogRef" :model="getAllFormData" > <!-- 循环开始 --> <template v-for="(item,i) in getAllFormData.getAllTableData"> <!-- 判断循环中的元素是否需要下拉框 :rules="item.rule" 循环中的数据 自定义的 rule 规则 :prop="`getAllTableData.${i}.value`" 每次循环的时候进行取值, 相当于给每个form绑定了唯一的model --> <el-form-item v-if="item.selectFlag" :key="item.labelName" :label="item.labelName" :prop="`getAllTableData.${i}.value`" :rules="item.rule" class="selectInput-box" > <el-select v-model="item.value" placeholder="请选择"> <el-option v-for="(item1) in item.selectOption" :key="item1.value" :label="item1.label" :value="item1.value" ></el-option> </el-select> </el-form-item> <el-form-item v-else-if="!item.hidden && item.disabled" :key="item.labelName" :prop="`getAllTableData.${i}.value`" :rules="item.rule" :label="item.labelName" > <el-input v-model="item.value" clearable autocomplete="off" :disabled="true" ></el-input> </el-form-item> <el-form-item v-else-if="!item.hidden" :key="i" :prop="`getAllTableData.${i}.value`" :rules="item.rule" :label="item.labelName" > <el-input v-model="item.value" clearable autocomplete="off"></el-input> </el-form-item> </template> </el-form> <div slot="footer" class="dialog-footer"> <el-button @click="dialogFormVisible = false">取 消</el-button> <el-button type="primary" @click="FormSureBtn" :loading="SureBtnLoading">确 定</el-button> </div> </el-dialog>
VUE中data中的声明
getAllFormData: { getAllTableData: [ { labelName: "规则ID", value: "", propName: "ruleid", disabled: true, hidden: true, // 规则必须也得定义在form绑定的model中 rule: { required: false } }, { labelName: "编码", value: "", propName: "code", rule: { // ElementUI 表单校验规则的语法 validator: (rule, value, callback) => { if (value == "") { callback(); } else { // 采用正则表达式进行判断 let reg = /[\u4E00-\u9FA5\uF900-\uFA2D]/; if (reg.test(value)) { callback(new Error("请输入英文或数字")); } else { callback(); } } }, trigger: "blur" } }, { labelName: "名称", value: "", propName: "name", rule: {} }, { labelName: "审核类别", value: "", propName: "typename", rule: {} }, { labelName: "字段名称", value: "", propName: "fieldcode", rule: {} }, { labelName: "备注", value: "", propName: "memo", rule: {} }, { labelName: "评分", value: "", propName: "mark", prop: "mark", rule: { required: true, validator: (rule, value, callback) => { if (value == "") { callback(new Error("请输入数字")); } else { let reg = /^[0-9]+([.]{1}[0-9]{1})?$/; if (!reg.test(value) || value > 100) { callback(new Error("请输入0-100的有效数字,可保留一位小数")); } else { callback(); } } }, trigger: "blur" } }, { labelName: "警告标识", value: "", propName: "warnsign", prop: "warnsign", selectFlag: true, selectOption: [ { value: "0", label: "否" }, { value: "1", label: "是" } ], rule: { required: true, message: "请选择对应的选项" } } ] },
效果图
required: true,说明该内容是必须填写的
正则表达式可以自定义项目需求的样式
ElementUI循环动态生成表单校验问题
<el-form :model="upsertForm" ref="upsertForm" label-width="100px" class="demo-dynamic"> <el-form-item prop="email" label="邮箱" :rules="[ { required: true, message: '请输入邮箱地址', trigger: 'blur' }, { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] } ]" > <el-input v-model="upsertForm.email"></el-input> </el-form-item> <el-form-item v-for="(domain, index) in upsertForm.domains" :label="'专利号' + index" :key="domain.key" :prop="'domains.' + index + '.value'" :rules="{ required: true, message: '专利号不能为空', trigger: 'blur' }" > <el-input v-model="domain.value"></el-input><el-button @click.prevent="removeDomain(domain)">删除</el-button> </el-form-item> <el-form-item> <el-button type="primary" @click="submitForm('upsertForm')">提交</el-button> <el-button @click="addDomain">新增专利号</el-button> <el-button @click="resetForm('upsertForm')">重置</el-button> </el-form-item> </el-form> <script> export default { data() { return { upsertForm: { domains: [{ value: '' }], email: '' } }; }, 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(); }, removeDomain(item) { var index = this.upsertForm.domains.indexOf(item) if (index !== -1) { this.upsertForm.domains.splice(index, 1) } }, addDomain() { this.upsertForm.domains.push({ value: '', key: Date.now() }); } } } </script>
注意:循环的是文本框,它隶属于form 表单,form 表单绑定的是upsertForm ,所以,它的对象必须要在upsertForm 里面,才能生效
以上为个人经验,希望能给大家一个参考,也希望大家多多支持我们。
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