Asp .NET MVC 正則表達式

Question

我想驗證我的 model 僅接受 10 個數字，並且數字不應以700開頭。 知道如何使用數據注釋來做到這一點嗎？

[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; } 

或者您可以按照評論“^(?.700)\d{10}$”中的建議合並最后兩個。