mirror of https://github.com/ElemeFE/element
768 lines
22 KiB
Markdown
768 lines
22 KiB
Markdown
<script>
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export default {
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data() {
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var checkAge = (rule, value, callback) => {
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if (!value) {
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return callback(new Error('Please input the age'));
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}
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setTimeout(() => {
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if (!Number.isInteger(value)) {
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callback(new Error('Please input digits'));
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} else {
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if (value < 18) {
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callback(new Error('Age must be greater than 18'));
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} else {
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callback();
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}
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}
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}, 1000);
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};
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var validaePass = (rule, value, callback) => {
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if (value === '') {
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callback(new Error('Please input the password'));
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} else {
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if (this.ruleForm2.checkPass !== '') {
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this.$refs.ruleForm2.validateField('checkPass');
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}
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callback();
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}
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};
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var validaePass2 = (rule, value, callback) => {
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if (value === '') {
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callback(new Error('Please input the password again'));
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} else if (value !== this.ruleForm2.pass) {
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callback(new Error('Two inputs don\'t match!'));
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} else {
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callback();
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}
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};
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return {
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form: {
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name: '',
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region: '',
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date1: '',
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date2: '',
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delivery: false,
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type: [],
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resource: '',
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desc: ''
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},
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formInline: {
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user: '',
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region: ''
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},
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labelPosition: 'right',
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formLabelAlign: {
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name: '',
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region: '',
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type: ''
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},
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ruleForm: {
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name: '',
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region: '',
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date1: '',
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date2: '',
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delivery: false,
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type: [],
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resource: '',
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desc: ''
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},
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ruleForm2: {
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pass: '',
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checkPass: '',
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age: ''
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},
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formLabelWidth: '80px',
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options: [
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],
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rules: {
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name: [
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{ required: true, message: 'Please input Activity name', trigger: 'blur' },
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{ min: 3, max: 5, message: 'Length should be 3 to 5', trigger: 'blur' }
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],
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region: [
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{ required: true, message: 'Please select Activity zone', trigger: 'change' }
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],
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date1: [
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{ type: 'date', required: true, message: 'Please pick a date', trigger: 'change' }
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],
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date2: [
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{ type: 'date', required: true, message: 'Please pick a time', trigger: 'change' }
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],
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type: [
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{ type: 'array', required: true, message: 'Please select at least one activity type', trigger: 'change' }
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],
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resource: [
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{ required: true, message: 'Please select activity resource', trigger: 'change' }
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],
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desc: [
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{ required: true, message: 'Please input activity form', trigger: 'blur' }
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]
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},
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rules2: {
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pass: [
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{ validator: validaePass, trigger: 'blur' }
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],
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checkPass: [
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{ validator: validaePass2, trigger: 'blur' }
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],
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age: [
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{ validator: checkAge, trigger: 'blur' }
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]
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},
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dynamicValidateForm: {
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domains: [{
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key: Date.now(),
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value: ''
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}],
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email: ''
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},
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numberValidateForm: {
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age: ''
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}
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};
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},
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methods: {
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onSubmit() {
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console.log('submit!');
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},
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onRuleFormSubmit() {
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console.log('onRuleFormSubmit');
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},
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submitForm(formName) {
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this.$refs[formName].validate((valid) => {
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if (valid) {
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alert('submit!');
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} else {
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console.log('error submit!!');
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return false;
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}
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});
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},
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resetForm(formName) {
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this.$refs[formName].resetFields();
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},
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removeDomain(item) {
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var index = this.dynamicValidateForm.domains.indexOf(item)
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if (index !== -1) {
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this.dynamicValidateForm.domains.splice(index, 1)
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}
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},
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addDomain() {
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this.dynamicValidateForm.domains.push({
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key: Date.now(),
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value: ''
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});
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}
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}
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}
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</script>
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<style>
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.demo-form.demo-en-US {
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.el-select .el-input {
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width: 360px;
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}
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.el-form {
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width: 480px;
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}
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.line {
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text-align: center;
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}
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.el-checkbox-group {
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width: 320px;
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margin: 0;
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padding: 0;
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list-style: none;
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&:after, &:before {
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content: ' ';
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display: table;
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}
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&:after {
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clear: both;
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visibility: hidden;
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font-size: 0;
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height: 0;
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}
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.el-checkbox {
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float: left;
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width: 160px;
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padding-right: 20px;
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margin: 0;
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padding: 0;
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+ .el-checkbox {
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margin-left: 0;
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}
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}
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}
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.demo-form-normal {
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width: 480px;
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}
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.demo-form-inline {
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width: auto;
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.el-input {
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width: 150px;
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}
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> * {
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margin-right: 10px;
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}
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}
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.demo-ruleForm {
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width: 480px;
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.el-select .el-input {
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width: 360px;
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}
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}
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.demo-dynamic {
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.el-input {
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margin-right: 10px;
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width: 270px;
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vertical-align: top;
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}
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}
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.fr {
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float: right;
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}
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}
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</style>
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## Form
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Form consists of `input`, `radio`, `select`, `checkbox` and so on. With form, you can collect, verify and submit data.
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### Basic form
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It includes all kinds of input items, such as `input`, `select`, `radio` and `checkbox`.
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:::demo In each `form` component, you need a `form-item` field to be the container of your input item.
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```html
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<el-form ref="form" :model="form" label-width="120px">
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<el-form-item label="Activity name">
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<el-input v-model="form.name"></el-input>
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</el-form-item>
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<el-form-item label="Activity zone">
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<el-select v-model="form.region" placeholder="please select your zone">
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<el-option label="Zone one" value="shanghai"></el-option>
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<el-option label="Zone two" value="beijing"></el-option>
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</el-select>
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</el-form-item>
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<el-form-item label="Activity time">
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<el-col :span="11">
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<el-date-picker type="date" placeholder="Pick a date" v-model="form.date1" style="width: 100%;"></el-date-picker>
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</el-col>
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<el-col class="line" :span="2">-</el-col>
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<el-col :span="11">
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<el-time-picker type="fixed-time" placeholder="Pick a time" v-model="form.date2" style="width: 100%;"></el-time-picker>
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</el-col>
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</el-form-item>
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<el-form-item label="Instant delivery">
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<el-switch on-text="" off-text="" v-model="form.delivery"></el-switch>
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</el-form-item>
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<el-form-item label="Activity type">
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<el-checkbox-group v-model="form.type">
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<el-checkbox label="Online activities" name="type"></el-checkbox>
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<el-checkbox label="Promotion activities" name="type"></el-checkbox>
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<el-checkbox label="Offline activities" name="type"></el-checkbox>
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<el-checkbox label="Simple brand exposure" name="type"></el-checkbox>
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</el-checkbox-group>
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</el-form-item>
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<el-form-item label="Resources">
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<el-radio-group v-model="form.resource">
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<el-radio label="Sponsor"></el-radio>
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<el-radio label="Venue"></el-radio>
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</el-radio-group>
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</el-form-item>
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<el-form-item label="Activity form">
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<el-input type="textarea" v-model="form.desc"></el-input>
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</el-form-item>
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<el-form-item>
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<el-button type="primary" @click="onSubmit">Create</el-button>
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<el-button>Cancel</el-button>
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</el-form-item>
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</el-form>
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<script>
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export default {
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data() {
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return {
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form: {
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name: '',
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region: '',
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date1: '',
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date2: '',
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delivery: false,
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type: [],
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resource: '',
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desc: ''
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}
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}
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},
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methods: {
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onSubmit() {
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console.log('submit!');
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}
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}
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}
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</script>
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```
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:::
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### Inline form
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When the vertical space is limited and the form is relatively simple, you can put it in one line.
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:::demo Set the `inline` attribute to `true` and the form will be inline.
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```html
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<el-form :inline="true" :model="formInline" class="demo-form-inline">
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<el-form-item label="Approved by">
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<el-input v-model="formInline.user" placeholder="Approved by"></el-input>
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</el-form-item>
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<el-form-item label="Activity zone">
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<el-select v-model="formInline.region" placeholder="Activity zone">
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<el-option label="Zone one" value="shanghai"></el-option>
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<el-option label="Zone two" value="beijing"></el-option>
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</el-select>
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</el-form-item><el-form-item>
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<el-button type="primary" @click="onSubmit">Query</el-button>
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</el-form-item>
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</el-form>
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<script>
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export default {
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data() {
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return {
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formInline: {
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user: '',
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region: ''
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}
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}
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},
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methods: {
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onSubmit() {
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console.log('submit!');
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}
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}
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}
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</script>
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```
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:::
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### Alignment
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Depending on your design, there are several different ways to align your label element.
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:::demo The `label-position` attribute decides how labels align, it can be `top` or `left`. When set to `top`, labels will be placed at the top of the form field.
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```html
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<el-radio-group v-model="labelPosition" size="small">
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<el-radio-button label="left">Left</el-radio-button>
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<el-radio-button label="right">Right</el-radio-button>
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<el-radio-button label="top">Top</el-radio-button>
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</el-radio-group>
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<div style="margin: 20px;"></div>
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<el-form :label-position="labelPosition" label-width="100px" :model="formLabelAlign">
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<el-form-item label="Name">
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<el-input v-model="formLabelAlign.name"></el-input>
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</el-form-item>
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<el-form-item label="Activity zone">
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<el-input v-model="formLabelAlign.region"></el-input>
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</el-form-item>
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<el-form-item label="Activity form">
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<el-input v-model="formLabelAlign.type"></el-input>
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</el-form-item>
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</el-form>
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<script>
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export default {
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data() {
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return {
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labelPosition: 'right',
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formLabelAlign: {
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name: '',
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region: '',
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type: ''
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}
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};
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}
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}
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</script>
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```
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:::
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### Validation
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Form component allows you to verify your data, helping you find and correct errors.
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:::demo Just add the `rule` attribute for `Form` component, pass validation rules, and set `prop` attribute for `Form-Item` as a specific key that needs to be validated. See more information at [async-validator](https://github.com/yiminghe/async-validator).
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```html
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<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="120px" class="demo-ruleForm">
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<el-form-item label="Activity name" prop="name">
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<el-input v-model="ruleForm.name"></el-input>
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</el-form-item>
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<el-form-item label="Activity zone" prop="region">
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<el-select v-model="ruleForm.region" placeholder="Activity zone">
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<el-option label="Zone one" value="shanghai"></el-option>
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<el-option label="Zone two" value="beijing"></el-option>
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</el-select>
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</el-form-item>
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<el-form-item label="Activity time" required>
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<el-col :span="11">
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<el-form-item prop="date1">
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<el-date-picker type="date" placeholder="Pick a date" v-model="ruleForm.date1" style="width: 100%;"></el-date-picker>
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</el-form-item>
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</el-col>
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<el-col class="line" :span="2">-</el-col>
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<el-col :span="11">
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<el-form-item prop="date2">
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<el-time-picker type="fixed-time" placeholder="Pick a time" v-model="ruleForm.date2" style="width: 100%;"></el-time-picker>
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</el-form-item>
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</el-col>
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</el-form-item>
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<el-form-item label="Instant delivery" prop="delivery">
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<el-switch on-text="" off-text="" v-model="ruleForm.delivery"></el-switch>
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</el-form-item>
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<el-form-item label="Activity type" prop="type">
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<el-checkbox-group v-model="ruleForm.type">
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<el-checkbox label="Online activities" name="type"></el-checkbox>
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<el-checkbox label="Promotion activities" name="type"></el-checkbox>
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<el-checkbox label="Offline activities" name="type"></el-checkbox>
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<el-checkbox label="Simple brand exposure" name="type"></el-checkbox>
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</el-checkbox-group>
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</el-form-item>
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<el-form-item label="Resources" prop="resource">
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<el-radio-group v-model="ruleForm.resource">
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<el-radio label="Sponsorship"></el-radio>
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<el-radio label="Venue"></el-radio>
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</el-radio-group>
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</el-form-item>
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<el-form-item label="Activity form" prop="desc">
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<el-input type="textarea" v-model="ruleForm.desc"></el-input>
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</el-form-item>
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<el-form-item>
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<el-button type="primary" @click="submitForm('ruleForm')">Create</el-button>
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<el-button @click="resetForm('ruleForm')">Reset</el-button>
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</el-form-item>
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</el-form>
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<script>
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export default {
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data() {
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return {
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ruleForm: {
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name: '',
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region: '',
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date1: '',
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date2: '',
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delivery: false,
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type: [],
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resource: '',
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desc: ''
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},
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rules: {
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name: [
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{ required: true, message: 'Please input Activity name', trigger: 'blur' },
|
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{ min: 3, max: 5, message: 'Length should be 3 to 5', trigger: 'blur' }
|
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],
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region: [
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{ required: true, message: 'Please select Activity zone', trigger: 'change' }
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],
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date1: [
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{ type: 'date', required: true, message: 'Please pick a date', trigger: 'change' }
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],
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date2: [
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{ type: 'date', required: true, message: 'Please pick a time', trigger: 'change' }
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],
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type: [
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{ type: 'array', required: true, message: 'Please select at least one activity type', trigger: 'change' }
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],
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resource: [
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{ required: true, message: 'Please select activity resource', trigger: 'change' }
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],
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desc: [
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{ required: true, message: 'Please input activity form', trigger: 'blur' }
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]
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}
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};
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},
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methods: {
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submitForm(formName) {
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this.$refs[formName].validate((valid) => {
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if (valid) {
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alert('submit!');
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} else {
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console.log('error submit!!');
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return false;
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}
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});
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},
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resetForm(formName) {
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this.$refs[formName].resetFields();
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}
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}
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}
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</script>
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```
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:::
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### Custom validation rules
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:::demo This example shows how to customize your own validation rules to finish a two-factor password verification.
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```html
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<el-form :model="ruleForm2" :rules="rules2" ref="ruleForm2" label-width="120px" class="demo-ruleForm">
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<el-form-item label="Password" prop="pass">
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<el-input type="password" v-model="ruleForm2.pass" auto-complete="off"></el-input>
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</el-form-item>
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<el-form-item label="Confirm" prop="checkPass">
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<el-input type="password" v-model="ruleForm2.checkPass" auto-complete="off"></el-input>
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</el-form-item>
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<el-form-item label="Age" prop="age">
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<el-input v-model.number="ruleForm2.age"></el-input>
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</el-form-item>
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<el-form-item>
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<el-button type="primary" @click="submitForm('ruleForm2')">Submit</el-button>
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<el-button @click="resetForm('ruleForm2')">Reset</el-button>
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</el-form-item>
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</el-form>
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<script>
|
||
export default {
|
||
data() {
|
||
var checkAge = (rule, value, callback) => {
|
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if (!value) {
|
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return callback(new Error('Please input the age'));
|
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}
|
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setTimeout(() => {
|
||
if (!Number.isInteger(value)) {
|
||
callback(new Error('Please input digits'));
|
||
} else {
|
||
if (value < 18) {
|
||
callback(new Error('Age must be greater than 18'));
|
||
} else {
|
||
callback();
|
||
}
|
||
}
|
||
}, 1000);
|
||
};
|
||
var validaePass = (rule, value, callback) => {
|
||
if (value === '') {
|
||
callback(new Error('Please input the password'));
|
||
} else {
|
||
if (this.ruleForm2.checkPass !== '') {
|
||
this.$refs.ruleForm2.validateField('checkPass');
|
||
}
|
||
callback();
|
||
}
|
||
};
|
||
var validaePass2 = (rule, value, callback) => {
|
||
if (value === '') {
|
||
callback(new Error('Please input the password again'));
|
||
} else if (value !== this.ruleForm2.pass) {
|
||
callback(new Error('Two inputs don\'t match!'));
|
||
} else {
|
||
callback();
|
||
}
|
||
};
|
||
return {
|
||
ruleForm2: {
|
||
pass: '',
|
||
checkPass: '',
|
||
age: ''
|
||
},
|
||
rules2: {
|
||
pass: [
|
||
{ validator: validaePass, trigger: 'blur' }
|
||
],
|
||
checkPass: [
|
||
{ validator: validaePass2, trigger: 'blur' }
|
||
],
|
||
age: [
|
||
{ validator: checkAge, 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>
|
||
```
|
||
:::
|
||
|
||
### Delete or add form items dynamically
|
||
|
||
:::demo In addition to passing all validation rules at once on the form component, you can also pass the validation rules or delete rules on a single form field dynamically.
|
||
|
||
```html
|
||
<el-form :model="dynamicValidateForm" ref="dynamicValidateForm" label-width="120px" class="demo-dynamic">
|
||
<el-form-item
|
||
prop="email"
|
||
label="Email"
|
||
:rules="[
|
||
{ required: true, message: 'Please input email address', trigger: 'blur' },
|
||
{ type: 'email', message: 'Please input correct email address', trigger: 'blur,change' }
|
||
]"
|
||
>
|
||
<el-input v-model="dynamicValidateForm.email"></el-input>
|
||
</el-form-item>
|
||
<el-form-item
|
||
v-for="(domain, index) in dynamicValidateForm.domains"
|
||
:label="'Domain' + index"
|
||
:key="domain.key"
|
||
:prop="'domains.' + index + '.value'"
|
||
:rules="{
|
||
required: true, message: 'domain can not be null', trigger: 'blur'
|
||
}"
|
||
>
|
||
<el-input v-model="domain.value"></el-input><el-button @click.prevent="removeDomain(domain)">Delete</el-button>
|
||
</el-form-item>
|
||
<el-form-item>
|
||
<el-button type="primary" @click="submitForm('dynamicValidateForm')">Submit</el-button>
|
||
<el-button @click="addDomain">New domain</el-button>
|
||
<el-button @click="resetForm('dynamicValidateForm')">Reset</el-button>
|
||
</el-form-item>
|
||
</el-form>
|
||
<script>
|
||
export default {
|
||
data() {
|
||
return {
|
||
dynamicValidateForm: {
|
||
domains: [{
|
||
key: 1,
|
||
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.dynamicValidateForm.domains.indexOf(item);
|
||
if (index !== -1) {
|
||
this.dynamicValidateForm.domains.splice(index, 1);
|
||
}
|
||
},
|
||
addDomain() {
|
||
this.dynamicValidateForm.domains.push({
|
||
key: Date.now(),
|
||
value: ''
|
||
});
|
||
}
|
||
}
|
||
}
|
||
</script>
|
||
```
|
||
:::
|
||
|
||
### Number Validate
|
||
|
||
::: demo Number Validate need a `.number` modifier added on the input `v-model` binding，it's used to transform the string value to the number which is provided by Vuejs.
|
||
```html
|
||
<el-form :model="numberValidateForm" ref="numberValidateForm" label-width="100px" class="demo-ruleForm">
|
||
<el-form-item
|
||
label="age"
|
||
prop="age"
|
||
:rules="[
|
||
{ required: true, message: 'age is required'},
|
||
{ type: 'number', message: 'age must be a number'}
|
||
]"
|
||
>
|
||
<el-input type="age" v-model.number="numberValidateForm.age" auto-complete="off"></el-input>
|
||
</el-form-item>
|
||
<el-form-item>
|
||
<el-button type="primary" @click="submitForm('numberValidateForm')">Submit</el-button>
|
||
<el-button @click="resetForm('numberValidateForm')">Reset</el-button>
|
||
</el-form-item>
|
||
</el-form>
|
||
<script>
|
||
export default {
|
||
data() {
|
||
return {
|
||
numberValidateForm: {
|
||
age: ''
|
||
}
|
||
};
|
||
},
|
||
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>
|
||
```
|
||
:::
|
||
|
||
### Form Attributes
|
||
|
||
| Attribute | Description | Type | Accepted Values | Default |
|
||
| ---- | ----| ---- | ---- | ---- |
|
||
| model| data of form component | object | — | — |
|
||
| rules | validation rules of form | object | — | — |
|
||
| inline | whether the form is inline | boolean | — | false |
|
||
| label-position | position of label | string | left/right/top | right |
|
||
| label-width | width of label, and all form items will inherit from `Form` | string | — | — |
|
||
| label-suffix | suffix of the label | string | — | — |
|
||
| show-message | whether to show the error message | boolean | — | true |
|
||
|
||
### Form Methods
|
||
|
||
| Method | Description | Parameters |
|
||
| ---- | ---- | ---- |
|
||
| validate | the method to validate the whole form | Function(callback: Function(boolean)) |
|
||
| validateField | the method to validate a certain form item | Function(prop: string, callback: Function(errorMessage: string)) |
|
||
| resetFields | reset all the fields and remove validation result | — |
|
||
|
||
### Form-Item Attributes
|
||
|
||
| Attribute | Description | Type | Accepted Values | Default |
|
||
| ---- | ----| ---- | ---- | ---- |
|
||
| prop | a key of `model` | string | keys of model that passed to `form` |
|
||
| label | label | string | — | — |
|
||
| label-width | width of label, e.g. '50px' | string | — | — |
|
||
| required | whether the field is required or not, will be determined by validation rules if omitted | string | — | false |
|
||
| rules | validation rules of form | object | — | — |
|
||
| error | field error message, set its value and the field will validate error and show this message immediately | string | — | — |
|
||
| show-message | whether to show the error message | boolean | — | true |
|