how to validate only characters in javascript of onkeypress

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I am not getting how to validate the code please reply....

Posted 27-Aug-13 18:48pm

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SoMad 28-Aug-13 0:53am

What have you tried?

Soren Madsen

3 solutions

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Sandeep Singh Shekhawat · Answer 1 · 2013-08-27T19:25:00

Please try following code

XML

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm2.aspx.cs" Inherits="UserInterface.WebForm2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script type="text/javascript">
        function Validate()
        {
        var charactersOnly = document.getElementById('<%=txtName.ClientID %>').value;
        if (charactersOnly.search(/^[a-zA-Z]+$/) === -1)
        {
            alert("Only characters");
            document.getElementById('<%=txtName.ClientID %>').value = "";
            }
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="txtName" runat="server"  onkeyup="Validate()" ></asp:TextBox>
    </div>
    </form>
</body>
</html>

Jitendra Sabat · Answer 2 · 2013-08-27T19:58:00

Solution 2

Go through the below link.

http://www.w3resource.com/javascript/form/all-letters-field.php[^]

Hope this will help you.

Posted 27-Aug-13 19:58pm

Jitendra Sabat

kabhi11866 · Answer 3 · 2017-08-21T20:58:00

<title>allow only alphabets(with space) in textbox using JavaScript

function onlyAlphabets(e, t) {
try {
if (window.event) {
var charCode = window.event.keyCode;
}
else if (e) {
var charCode = e.which;
}
else { return true; }
if ((charCode > 64 && charCode < 91) || (charCode > 96 && charCode < 123))
return true;
else
return false;
}
catch (err) {
alert(err.Description);
}
}

how to validate only characters in javascript of onkeypress

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