ASP.Net Mvc Fixed-Length String Data Annotation

Question

How can I set the string validation for a fixed-length string using data annotation ?

I want to have a property on my model with the exact 10 string-length.

I'm counting the seconds for help.

Answer 1

1) [StringLength(10, MinimumLength = 10)]

2) [RegularExpression(@"(.{10})")]

Answer 2

Try

[StringLength(10, MinimumLength = 10, ErrorMessage = "This field must be 10 characters")]
public string myString {get;set;}