How to restrict alphabets and special characters in a text box using Jquery?

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Javascript

jQuery

Can someone please show me how to restrict alphabets and special characters excluding '-' into a text box using jquery?

Posted 26-Jun-14 10:39am

Member 10740414

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[no name] 26-Jun-14 17:12pm

http://www.bing.com/search?q=jquery+restrict+characters

Sergey Alexandrovich Kryukov 26-Jun-14 23:44pm

Perhaps more effective more effective approach would be looking at original jQuery documentation. It's clear where to look for — keyboard events. Please see my answer.
—SA

Sergey Alexandrovich Kryukov 26-Jun-14 23:32pm

There are millions of correct code samples on this "problem". Honestly, answering this question again and again would not be good. Please search available CodeProject answers (as just one of the many ways to find the solution).
—SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-06-26T17:43:00

Please see the comments to the question by Wes Aday and myself. I could suggest one more method of finding out such solutions: read original jQuery documentation of keyboard events. In particular, pay attention how return false works on an event handler, as a blocker of default event handling: http://api.jquery.com/keypress[^].

This jsFiddle shows a complete solution: http://jsfiddle.net/ExceptionLimeCat/cmfNj[^].

—SA

Member 10740414 · Answer 2 · 2014-06-27T07:54:00

<pre lang="cs">function allowOnlyNumber(eventInstance) {
          eventInstance = eventInstance || window.event;
          key = eventInstance.keyCode || eventInstance.which;
          if ((47 < key) && (key < 58) || key == 8 || key == 189 || key == 109) {
              return true;
          } else {
              if (eventInstance.preventDefault)
                  eventInstance.preventDefault();
              eventInstance.returnValue = false;
              return false;
          }
      }

I tried this which worked.

How to restrict alphabets and special characters in a text box using Jquery?

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