摘要：
Using Validation AnnotationsRequired必须项验证属性[Required]public string FirstName { get; set; }[Required]public string LastName { get; set; }StringLength长度[Required][StringLength(160)]public string LastName { get; set; }[Required][StringLength(160, MinimumLength=3)]public string FirstName { get; set; }Re 阅读全文