Validation in EJ2 TypeScript Textbox control

4 Jan 20254 minutes to read

The TextBox supports three types of validation styles namely error, warning, and success. These states are enabled by adding corresponding classes .e-error, .e-warning, or .e-success to the cssClass property.

import { InputObject, TextBox } from '@syncfusion/ej2-inputs';

let warningTextBox: TextBox = new TextBox({
    placeholder: 'Input with warning',
    cssClass: 'e-warning',
  });
  warningTextBox.appendTo('#warning');
  let errorFloatTextBox: TextBox = new TextBox({
    placeholder: 'Input with error',
    cssClass: 'e-error',
  });
  errorFloatTextBox.appendTo('#error');
  let successIconTextBox: TextBox = new TextBox({
    placeholder: 'Input with success',
    cssClass: 'e-success',
  });
  successIconTextBox.appendTo('#success');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>Essential JS 2 TextBox</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Essential JS 2 TextBox Components" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-inputs/styles/material.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div class='wrap'>
          <div id="input-container">



            <div>
              <input id="warning" type="text"  />
            </div>
         
            <div >
              <input id="error" type="text"/>
            </div>
         
            <div>
              <input id="success" type="text" />
            </div>




          </div>
        </div>
    </div>
</body>
</html>
#container {
  visibility: hidden;
}

#loader {
  color: #008cff;
  font-family: 'Helvetica Neue','calibiri';
  font-size: 14px;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}

.wrap {
  box-sizing: border-box;
  margin: 0 auto;
  padding: 20px 10px;
  width: 340px;
}