Data Annotation - Required

Ramco Ramco

I have given below Data Annotation but it does not display message at Client Side even if no of characters entered is more than 4

[Required(ErrorMessage = "Id cannot be Blank. Max length should be less than or equal to 4."), MaxLength(4)]

Secondly if only alphabets are entered then also it gives error message - Special characters are not allowed.

Thanks

9 Replies

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Sachin Singh5y ago
Accepted answer
Yes, MaxLength has a dependency on Entity Framework, as you are using Ado.net so it will not work, so use this
[StringLength(4)]
it will work for sure.
+2
Ramco Ramco5y ago
Hi Sachin

ID is a string

Thanks
+1
Sachin Singh5y ago
I just saw that your Id is an integer, then instead of max length use the range attribute.
[Range(1,9999,ErrorMessage="you can only enter upto 4 digits")]
+1
Ramco Ramco5y ago
Hi Sachin

Only in case of length it is giving problem. Do i need to include script files again

Secondly is there any way so that i don't require to include Script files in every view.

Thanks
+1
Sachin Singh5y ago
after the below code
Required(ErrorMessage = "Id can not be blank.")]
[MaxLength(4, ErrorMessage = "Max length should be less than or equal to 4.")]
[RegularExpression("([0-9]+)", ErrorMessage = "Please enter valid Number")]
public int Id { get; set; }
you just need to include the client side scripts in your view.
Jquery.Validate
Jquery.validate.Unobtrusive.
@Html.ValidationMessageFor(x=>x.Id)
+1
Ramco Ramco5y ago
Hi Farhan

It is still accepting more than 4 characters & not giving any message

Thanks
+1
Farhan Ahmed5y ago
1. Required(ErrorMessage = "Id can not be blank.")]
2. [MaxLength(4, ErrorMessage = "Max length should be less than or equal to 4.")]
3. [RegularExpression("([0-9]+)", ErrorMessage = "Please enter valid Number")]
4. public int Id { get; set; }
+1

Ramco Ramco5y ago

Hi Frahan

Can u pls mention again what needs to be corrected.

Thanks

Farhan Ahmed5y ago

Required(ErrorMessage = "Id can not be blank.")] [MaxLength(4, ErrorMessage = "Maximum length should not more than or equal 4.")] [RegularExpression("([0-9]+)", ErrorMessage = "Please enter valid Number")] Or property should be int