javascript code for special character validation

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Hi All

i need a javascript code for not allowing special characters and numbers and allow
spaces in my text box

thanks in advance
afsal

Posted 27-Jun-12 19:37pm

afsal.mp

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Sergey Alexandrovich Kryukov 28-Jun-12 1:56am

What are those "special characters"? There is no such thing.
--SA

2 solutions

Solution 2

This is a simple sample of similar thing:
Here is how to filter out:

HTML

<html>
   <head>
      <script type="text/javascript"><!--
         function filterDigits(eventInstance) { 
            eventInstance = eventInstance || window.event;
                key = eventInstance.keyCode || eventInstance.which;
            if ((47 < key) && (key < 58) || key = 45 || key == 8) {
               return true;
            } else {
                    if (eventInstance.preventDefault) eventInstance.preventDefault();
                    eventInstance.returnValue = false;
                    return false;
            } //if
         } //filterDigits
      --></script>
   </head>
<body">

<input type="text" onkeypress="filterDigits(event)"/>

</body>
</html>

Pay attention that the key code 8 (backspace) is allowed. By some historical reason, this key is considered as a character, so it should be specifically allowed through the filter.

—SA

Posted 27-Jun-12 20:00pm

Sergey Alexandrovich Kryukov

Updated 27-Jun-12 20:02pm

v2

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Rahul Rajat Singh · Accepted Answer · 2012-06-27T19:39:00

Solution 1

This article contains a small JS framework which contains what you need. also many more of similar nature.

A Tiny Javascript Framework for Common Validation Scenarios.[^]

P.S. just use the AcceptAlphabetOnly function with argument for spaces as true.

Posted 27-Jun-12 19:39pm

Rahul Rajat Singh

v2

Comments

afsal.mp 28-Jun-12 1:50am

thanks rahul .. this solution solved my problem

Rahul Rajat Singh 28-Jun-12 1:55am

you are welcome. if it worked then please mark the answer as solution as this would let other know that the problems is solved and the others with similar problem can also refer and benefit from it.

afsal.mp 28-Jun-12 2:07am

done it

Rahul Rajat Singh 28-Jun-12 2:09am

thanks.

afsal.mp 28-Jun-12 2:44am

hi .. if u dontmind let me know how to allow dot(.) in this javascript

afsal.mp 28-Jun-12 2:45am

i got it thanks