Asp .NET MVC 正则表达式

Question

我想验证我的模型只接受 10 个数字，并且数字不应以 700 开头。 知道如何使用数据注释来做到这一点吗？

[Required(ErrorMessage = "This field is required ")]
[StringLength(10, ErrorMessage = " CR should be 10 digits")]
public string CR_Number { get; set; } 

Answer 1

 [Required(ErrorMessage = "This field is required ")]
 [StringLength(10, ErrorMessage = " CR should be 10 digits")]
 [RegularExpression("^(?!700)\d", ErrorMessage = "CR should not start with 700.")]
 public string CR_Number { get; set; } 

或者您可以按照 cmets "^(?!700)\d{10}$" 中的建议合并最后两个。