MVC unobtrusive validation on checkbox not working

Question

I\'m trying to implement the code as mentioned in this post. In other words I\'m trying to implement unobtrusive validation on a terms and conditions checkbox. If the user

Answer 1

Sniffer,

In addition to implementing Darin's solution, you also need to modify the file jquery.validate.unobtrusive.js. In this file, you must add a "mustbetrue" validation method, as follows:

$jQval.addMethod("mustbetrue", function (value, element, param) {
    // check if dependency is met
    if (!this.depend(param, element))
        return "dependency-mismatch";
    return element.checked;
});

Then (I forgot to add this at first), you must also add the following to jquery.validate.unobtrusive.js:

adapters.add("mustbetrue", function (options) {
    setValidationValues(options, "mustbetrue", true);
});

counsellorben