MVC Client Side Validator - passes boolean as a string

Question

I'm trying to pass a boolean parameter from the 'GetClientValidationRules' method of a validator. However the parameter comes through as a string. Is it possible to pass the parameter as an actual boolean value?

Code for reference:

Server-side:

public override IEnumerable<ModelClientValidationRule> GetClientValidationRules()
{
    var rule = new ModelClientValidationRule()
    {
        ErrorMessage = "This is an error."
        ValidationType = "test"
    }
    rule.ValidationParameters.Add("test", true);
    yield return rule;
}

Client-side:

$.validator.unobtrusive.adapters.add("test", ["test"], function(options) {
    var parameter = options.params.test;

    if (parameter) { // Always true, because parameter === "True" (string value)
        ...
    }
});

I understand that i could just use 'if (parameter === "True")' but would like to avoid doing so if possible.

Any help would be greatly appreciated.

Answer 1

Unfortunately all values are passed as strings, so you'll have to parse it there.

However, you can pass it to the validation method as a boolean:

$.validator.unobtrusive.adapters.add("test", ["test"], function (options) {
    var parameter = options.params.test;

    options.rules["myMethod"] = parameter.toLowerCase() === "true";
    // add other options, such as the validation message
});

$.validator.addMethod("myMethod", function (value, element, params) {
    // 'params' would be the boolean value 'true'
});