How to allow only integers in a Dynamic textbox?

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I have a Dynamic textbox like

HTML

<input type='text' Class='TxtBox' id='txtPhNo' placeholder='Enter Phone No' />

How to allow only integers in this textbox?

Posted 21-Sep-14 18:58pm

MAGuru

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3 solutions

Solution 2

Using Jquery you can do this easily

HTML

<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script src="http://digitalbush.com/wp-content/uploads/2013/01/jquery.maskedinput-1.3.1.min_.js"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
  <script type='text/javascript'>
    $(function(){
        //Define your mask
        $('#Textbox1').mask('99999.9999');
    });
  </script>
</head>
<body>
  <!-- Example of your TextBox -->
  <input id='Textbox1' />
</body>
</html>

You can also use ajax control toolkit control check this links

http://aspsnippets.com/Articles/ASPNet-AJAX-FilteredTextBoxExtender-Control-Example.aspx

https://ajaxcontroltoolkit.codeplex.com/wikipage?title=FilteredTextBox%20Control&referringTitle=Tutorials[^]

Posted 21-Sep-14 19:19pm

M.Farrukh Abbas

Solution 3

Hi,

If you are using HTML 5 you can do it as :

HTML

<input type="text" class="TxtBox" id="txtPhNo" placeholder="Enter Phone No" pattern="[0-9]" />

Refer to this : http://www.pageresource.com/html5/input-validation-tutorial/[^]

If not HTML5, then you can do it using JavaScript or Jquery both.

1) JavaScript :

JavaScript

<input type="text" class="TxtBox" id="txtPhNo" placeholder="Enter Phone No"  önkeypress="return event.charCode >= 48 && event.charCode <= 57"></input></input>

2) JQuery :

JavaScript

$(document).ready(function() {
    $("#txtboxID").keydown(function (e) {
        // Allow: backspace, delete, tab, escape, enter
        if ($.inArray(e.keyCode, [46, 8, 9, 27, 13, 110, 190]) !== -1 ||
             // Allow: Ctrl+A
            (e.keyCode == 65 && e.ctrlKey === true) || 
             // Allow: home, end, left, right
            (e.keyCode >= 35 && e.keyCode <= 39)) {
                 return;
        }
        // Ensure that it is a number and stop the keypress
        if ((e.shiftKey || (e.keyCode < 48 || e.keyCode > 57)) && (e.keyCode < 96 || e.keyCode > 105)) {
            e.preventDefault();
        }
    });
});

Hope this helps !!

Regards,
Praneet

Posted 21-Sep-14 19:22pm

Praneet Nadkar

Updated 21-Sep-14 19:27pm

v2

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KaushalJB · Accepted Answer · 2014-09-21T19:13:00

Solution 1

Refer this code : Allow only integers jquery

Posted 21-Sep-14 19:13pm

KaushalJB