Use the valid method for that: http://docs.jquery.com/Plugins/Validation/valid
$("#A").change(function() { $("#B").valid(); }); Jörn On Tue, Jun 24, 2008 at 4:34 AM, zhudp.cn <[EMAIL PROTECTED]> wrote: > > There is a question: If the A field is changed, how to call the > validate method of B field? > > In my form, there are A and B fields, I have to call B's remote > method, when one of A and B have changed, > > coding: > $(myForm).validate({ > rules: { > B: { > remote: function(){ > return > "/validateABExist.do?A="+$("#A").val() > } > messages: { > B: { > remote: "the combination of A and B is existed" > } > } > }) > > $("#A").change(function() { > //TODO: How to call B's remote method? > > }); >