JQuery is very lightweight library. JQuery is a matured open source library that makes
life easy when doing some client side programming or scripting. It simplifies
the way JavaScript is written. It is light weight, fast and works on modern
browsers, thus it’s widely accepted among the web developers and even Visual Studio
2010 and ASP.net 4.0 now come with it.
Below is the JQuery function for Special characters
verification code
$(function () {
$('.view').blur(function () {
var str = $('#txtName').val();
if (/^[a-zA-Z0-9- ]*$/.test(str) == false) {
alert('String Contains illegal
Characters.');
}
else {
}
})
})
The above code we
are using Blur event for finding special character.
To check if string
contains special characters we need to write the code like as shown below
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>jQuery Check string contains special characters in TextBox</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.2.js"></script>
<script type="text/javascript" language="javascript">
$(function () {
$('.view').blur(function ()
{
var str = $('#txtName').val();
if (/^[a-zA-Z0-9- ]*$/.test(str) == false) {
alert('String
Contains illegal Characters.');
}
else {
}
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
Check Special Characters :
<asp:TextBox runat="server" CssClass="view" ID="txtName"></asp:TextBox>
</form>
</body>
</html>
Out Put :
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