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Client Side Validation in Vue DatePicker component

02 Dec 2022 / 2 minutes to read

To achieve the client side validation in a DatePicker component by using Essential JavaScript 2 FormValidator. It provides an option to customize the feedback error messages to the corresponding fields to take action to resolve the issue.

In the below example, the required field validation is implemented by mapping the name attribute value to the rules property. It will validate the DatePicker component and display the validation message when the textbox value is empty during form post back or focus out.

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  <div id="app">
    <div class='wrap'>
      <form id="form-element" class="form-horizontal">
           <div class="form-group" style="padding-top: 11px;">
                <div class="col-lg-8">
                    <ejs-datepicker id="datepicker" name="date" :change="onValueChange" class="form-control" placeholder='Select a date'></ejs-datepicker>
import Vue from "vue";
import { DatePickerPlugin } from "@syncfusion/ej2-vue-calendars";
import { FormValidator } from '@syncfusion/ej2-inputs';

export default {
    data: function() {
        return {
          formObj: '',
          options : {
            customPlacement: function(inputelement, errorElement) {
                var parentElement = inputelement.closest('.form-group');
            rules: {
                'date': {
                    required: true
  mounted: function () {
      this.formObj = new FormValidator('#form-element', this.options);
    methods:  {
       onValueChange: function(args) {
  @import '../node_modules/@syncfusion/ej2-base/styles/material.css';
  @import '../node_modules/@syncfusion/ej2-buttons/styles/material.css';
  @import '../node_modules/@syncfusion/ej2-inputs/styles/material.css';
  @import '../node_modules/@syncfusion/ej2-popups/styles/material.css';
  @import "../node_modules/@syncfusion/ej2-vue-calendars/styles/material.css";
 .wrap {
    margin: 0 auto;
    width: 240px;