MVC 3 Custom Validation:Validation type names in unobtrusive client validation rules must be unique

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C#

ASP.NET

Ajax

MVC3

Hi Guys,
Im having a challenge using the Unobtrusive Validation and i created two classes one validatin a set of rule and another one a set of a rule.
i invoke them using this technique...

[ValidationRuleX(ErrorMessageResourceName = "WSEARCH_VALIDATION_WILL_XRULE", 
		    ErrorMessageResourceType = typeof(SanlamTrust.Localisation.strings))
		]
[ValidationRuleDigit(ErrorMessageResourceName = "WSEARCH_VALIDATION_WILL_DIGITRULE",
			ErrorMessageResourceType = typeof(SanlamTrust.Localisation.strings))
		]
public string WillNumber { get; set; }

They are both validating the same control which is WillNumber....
The implementation of both classes header look like this

public class ValidationRuleDigitAttribute : ValidationAttribute, IClientValidatable{}

public class ValidationRuleXAttribute : ValidationAttribute, IClientValidatable{}

When i execute the program is returns this error:
Validation type names in unobtrusive client validation rules must be unique.
I checked in most site with people who have encountered this and they advice for a creation of other property in your like this:

public ModelClientValidationNotEqualToRule(string errorMessage, string otherProperties)
        {
            ErrorMessage = errorMessage;
            ValidationType = "willnumber";
            ValidationParameters.Add("otherproperties", otherProperties);
        }

In my case im using only one field not multiple fields...

Thanx in advance
Mninawa