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Introduction

Here I will explain how to allow only numbers or numeric characters in textbox using
JQuery in asp.net.

Description:
  
In previous posts I explained jQuery Autocomplete textbox with images, jQuery lightbox slideshow, jQuery Create Rounded Corners Textbox,
jQuery slideUp, slideDown and slideToggle Example, Password strength jquery plugin examples and many articles relating to JQuery, Asp.net. Now I will explain how to allow only numbers or numeric characters in textbox using JQuery in asp.net.

To restrict user to enter only numbers in textbox we need to write the following code


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>jQuery allow only numbers or numeric characters in textbox</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.js"></script>
<script type="text/javascript">
$(function() {
$('#txtNumeric').keydown(function(e) {
if (e.shiftKey || e.ctrlKey || e.altKey) {
e.preventDefault();
} else {
var key = e.keyCode;
if (!((key == 8) || (key == 46) || (key >= 35 && key <= 40) || (key >= 48 && key <= 57) || (key >= 96 && key <= 105))) {
e.preventDefault();
}
}
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtNumeric" runat="server"/>
</div>
</form>
</body>
</html>

Live Demo

To check Live demo try to enter characters in below textbox

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3 comments :

Anonymous said...

Able to enter charecter

rahul sodagar said...

character enter ho rahe he..

Anonymous said...

fail, it let pass &* and others..

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