Client-side Custom Annotation Validation Not Working

I am trying to get client-side validation working with custom annotations in an ASP.NET MVC app. Sorry for the somewhat lengthy post. Here is the custom attribute: public class Cu

Solution 1:

I finally got this working! I decided not to try to use the "convenience" addMinMax adapter, but instead write a custom adapter. Here is the updated customValidation.js (everything else stays the same):

(function ($) {
    if ($.validator && $.validator.unobtrusive) {

        $.validator.unobtrusive.adapters.add('customstringlength', ['min', 'max'], function(options) {
            options.rules['customstringlength'] = {
                min: options.params.min,
                max: options.params.max,
            };
            options.messages['customstringlength'] = options.message;
        });

        $.validator.addMethod('customstringlength', function (value, element, params) {
            if (value) {
                if (value.length < params.min || value.length > params.max) {
                    return false;
                }
            }
            return true;
        });
    }
}(jQuery));