jqueryvalidationjquery-validate

jQuery validation plugin: accept only alphabetical characters?


I'd like to use jQuery's validation plugin to validate a field that only accepts alphabetical characters, but there doesn't seem to be a defined rule for it. I've searched google but I've found nothing useful.

Any ideas?

Appreciate your help.


Solution

  • If you include the additional methods file, here's the current file for 1.7: http://ajax.microsoft.com/ajax/jquery.validate/1.7/additional-methods.js

    You can use the lettersonly rule :) The additional methods are part of the zip you download, you can always find the latest here.

    Here's an example:

    $("form").validate({
      rules: {
        myField: { lettersonly: true }
      }
    });
    

    It's worth noting, each additional method is independent, you can include that specific one, just place this before your .validate() call:

    jQuery.validator.addMethod("lettersonly", function(value, element) {
      return this.optional(element) || /^[a-z]+$/i.test(value);
    }, "Letters only please");