Data annotation validation for integer value
Data annotation validation for integer value
I have a property called ID_No and would like validation on this: the length of this needs to be 13 digits, not more nor less
ID_No
I have tried the following:
[Required]
[RegularExpression(@"[0-9]13", ErrorMessage = "Invalid ID Number")]
[Range(1000000000000, 9999999999999, ErrorMessage = "ID number cannot be longer than 13 digits")]
[Display(Name = "ID Number")]
public int ID_No get; set;
However it does not seem to work. It keeps saying the value "whatever 13 digits I enter" is invalid.
Any suggestions or help on how I can get this to work?
[RegularExpression]
int
string
int
2147483647
int
What datatype you suggest? @StephenMuecke
– Daniel
Sep 15 '18 at 10:08
You could use a
long with a [Range] attribute (but definitely not a [StringLength] attribute) or a string with your [RegularExpression] and a [StringLength] attribute. It depends on what the value is actually for (are you doing numeric calculations with it? - it sound like its really some kind of identifier property?)– user3559349
Sep 15 '18 at 10:12
long
[Range]
[StringLength]
string
[RegularExpression]
[StringLength]
@StephenMuecke It is used on the registration page, The user just enters their ID number and I store it in the DB
– Daniel
Sep 15 '18 at 10:23
Then a
string is probably more appropriate (albeit you requirement for an ID for an ID to be exactly 13 characters is a bit odd)– user3559349
Sep 15 '18 at 10:25
string
ID
ID
1 Answer
1
try this
[Required]
[Display(Name = "ID Number")]
[Range(1000000000000, 9999999999999, ErrorMessage = "ID number cannot be longer than 13 digits")]
[StringLength(13, MinimumLength=13, ErrorMessage = "ID number must be 13 char")]
public long ID_No get; set;
Check this fiddle: https://dotnetfiddle.net/g3ruR2
Seriously?? How could a 13 digit number be converted to an
int - you just get an error in the POST method– user3559349
Sep 15 '18 at 9:57
int
use 'long` if you get error as int cannot hold that high value, check updated answer
– Nitin Sawant
Sep 15 '18 at 10:02
Its not my question :) And what is the point of claiming to solve one issue and then create another
– user3559349
Sep 15 '18 at 10:06
And if you are going to create fiddle, then show all the code to make it work - not omit the code that cause exceptions - https://dotnetfiddle.net/u4MawN
– user3559349
Sep 15 '18 at 10:28
OP had issues with textbox length only
– Nitin Sawant
Sep 15 '18 at 15:59
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A
[RegularExpression]attribute on aintmakes no sense - the property would need to be typeofstring. And the maximum value for anintis2147483647so anintcannot have 13 digits– user3559349
Sep 15 '18 at 8:41