namespace Biz.WEB
{
    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = false,Inherited=true)]
    public class DateAttribute : ValidationAttribute
    {
        public DateAttribute()
        {
        
            MinDate = new DateTime(1753, 1, 1).ToString();
            MaxDate = new DateTime(9999, 12, 31).ToString();
        }

        public string MinDate
        {
            get;
            set;
        }

        public string MaxDate
        {
            get;
            set;
        }

        private DateTime minDate, maxDate;
    
        private bool isFormatError = true;

        public override bool IsValid(object value)
        {
            
            if (value == null || string.IsNullOrEmpty(value.ToString()))
                return true;

            string s = value.ToString();
            minDate = DateTime.Parse(MinDate);
            maxDate = DateTime.Parse(MaxDate);
            bool result = true;
            try
            {
                DateTime date = DateTime.Parse(s);
                isFormatError = false;
                if (date > maxDate || date < minDate)
                    result = false;
            }
            catch (Exception)
            {
                result = false;
            }
            return result;
        }

        public override string FormatErrorMessage(string name)
        {
           if (isFormatError)
               return "请输入合法的日期";
            return base.FormatErrorMessage(name);
        }
    }
}

namespace MvcApplication4.Models
{
    public class Movie
    {
        [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int ID { get; set; }
        [StringLength(10, MinimumLength = 2, ErrorMessage = "必须是2~10个字符长"), Required, Display(Name = "名称")]
        public string Title { get; set; }

        [Date(MaxDate = "2012-01-01", ErrorMessage = "2012地球灭亡啦"), Display(Name = "日期")]
        public DateTime ReleaseDate { get; set; }



        public string Genre { get; set; }

        [Range(1, 100, ErrorMessage = "必须是1~100")]
        public decimal Price { get; set; }
        public string Rating { get; set; }
 }

    public class MovieDBContext : DbContext
    {
        public DbSet<Movie> Movies { get; set; }
    }


}