求助 .NET MVC3 问题!!
我自己写了一个 MODEL验证特性
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; } }}