Hi, I try to make a custom method which indicates if the field "room Number" is available. And I have this error : jQuery.validator.methods[method] is undefined
with this code : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/ TR/html4/strict.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Untitled Document</title> <link href="style/cmxformTemplate.css" type="text/css" rel="stylesheet" /> <script type="text/javascript" src="javascript/ jquery-1.2.6.min.js"></script> <script type="text/javascript" src="javascript/ jquery.validate.min.js"></script> </head> <body> <form id="conferenceForm" class="cmxform" action="javascript:alert('OK');" method="post" autocomplete="off"> <fieldset> <p> <label for="jqmRoomNumber">Room Number</label> <em>*</em> <input type="text" MAXLENGTH="6" id="jqmRoomNumber" name="jqmRoomNumber"/> </p> <p> <input type="submit" value="Create"/> <input type="button" value="Cancel" onclick="hidePopup()" /> </p> </fieldset> </form> <script type="text/javascript"> $(function() { $.validator.addMethod("roomNumber", function (value, element, param) { return true; }, "Your room number is not available"); $("#conferenceForm").validate({ rules: { jqmRoomNumber: { required: true, roomNumber:true, minLength:2 } }, messages: { jqmRoomNumber: { required: "Please enter a room Number", minLength: "Your login must consist of at least 2 characters" } } }); }); </script> </body> </html> For now, I have made un simple custom method which return always "true" to understand how .