Can't acces the ValidationParameters on .NET MVC client-side validation - asp.net-mvc

Question

I am coding a custom validation to my .NET MVC 4 application. This is the first validation that uses a parameter, and I'm finding some trouble to get this.
This is my C# code:
ValidationAttribute:
namespace Validations
{
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public class MinRequiredPasswordLengthValidationAttribute : ValidationAttribute, IClientValidatable
{
public MinRequiredPasswordLengthValidationAttribute()
: base("The password is invalid")
{
}
public override string FormatErrorMessage(string name)
{
return String.Format(CultureInfo.CurrentCulture, ErrorMessageString, name.ToLower(), Membership.MinRequiredPasswordLength);
}
public override bool IsValid(object value)
{
if (value == null || String.IsNullOrEmpty(value.ToString()))
{
return true;
}
return value.ToString().Length >= Membership.MinRequiredPasswordLength;
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
ModelClientMinRequiredPasswordLengthValidationRule rule = new ModelClientMinRequiredPasswordLengthValidationRule(FormatErrorMessage(metadata.GetDisplayName()), Membership.MinRequiredPasswordLength);
yield return rule;
}
}
}
ModelClientValidationRule:
namespace Validations
{
public class ModelClientMinRequiredPasswordLengthValidationRule : ModelClientValidationRule
{
public ModelClientMinRequiredPasswordLengthValidationRule(string errorMessage, int minRequiredPasswordLength)
{
ErrorMessage = errorMessage;
ValidationType = "minrequiredpasswordlength";
ValidationParameters.Add("minlength", minRequiredPasswordLength);
}
}
}
And here is the JS code, my problem:
jQuery.validator.addMethod("minrequiredpasswordlength", function (value, element, params) {
if (value.length == 0) {
return true; //empty
}
return true; //dummy return
}, "");
jQuery.validator.unobtrusive.adapters.add("minrequiredpasswordlength", {}, function (options) {
//XXX Here I should get the minlength parameter, but 'options' is a empty object
options.messages["minrequiredpasswordlength"] = options.message;
});
Many thanks for the help!

Answer 1

see if this link helps:
ASP.NET MVC 3 client-side validation with parameters
Also, try changing your javascript code to this:
$.validator.addMethod('minrequiredpasswordlength', function (value, element, params) {
var minLength = params.minLength;
// minLength should contain your value.
return true; // dummy return
});
jQuery.validator.unobtrusive.adapters.add('minrequiredpasswordlength', [ 'minlength' ], function (options) {
options.rules['minrequiredpasswordlength'] = {
minLength: options.params['minlength']
};
//XXX Here I should get the minlength parameter, but 'options' is a empty object
options.messages["minrequiredpasswordlength"] = options.message;
});
The secret here is to use [ 'minlength' ] instead of {} It took me a lot of time when I first learnt this. I hope this helps.