asp.net mvc2 validate type double

Question

[MetadataType(typeof(Deal_Validation))]
    public partial class Deal
    {
    }

    public class Deal_Validation
    {
        [Required]
        public string Title { get; set; }

        public double? EstValue { set; get; }
    }

How to validate EstValue (check if it is of type double?)

Thanks

Answer 1

Please look here: http://stackoverflow.com/questions/2936529/validating-primitive-types-in-asp-net-mvc/2936826#2936826