Unable to set membernames from custom validation attribute in MVC2

Question

I have created a custom validation attribute by subclassing ValidationAttribute. The attribute is applied to my viewmodel at the class level as it needs to validate more tha

Answer 1

You need to set the ErrorMessage property, so for example:

 public class DOBValidAttribute : ValidationAttribute
{
    private static string _errorMessage = "Date of birth is a required field.";

    public DOBValidAttribute() : base(_errorMessage)
    {

    }
//etc......overriding IsValid....