Display Additional Error Notification

Updated on Dec 10, 2025

Environment

Product Version	2017.1 117
Product	Progress® Kendo UI® NumericTextBox for jQuery

Description

How can I provide additional notification that the NumericTextBox value must be a number to the user?

Solution

1. In the document ready event handler, append the desired span by using the k-numeric-wrap class selector.

2. Display the span when the NumericTextBox has the k-invalid class by using CSS.

   <style>
       span.myInvalid {
           position: relative;
           top: 30px;
           left: -130px;
           color: red;
           visibility: hidden;
       }
   
       .k-invalid>span.myInvalid {
           visibility: visible;
       }
   </style>
   <input id="textbox">
   
   <script>
       $("#textbox").kendoNumericTextBox({
           value: 10
       });
   
       $(document).ready(function() {
           $(".k-numeric-wrap").append("<span class='myInvalid'>Enter a number!</span>");
   
       });
   </script>