How to check Minlength and Maxlength validation of a property in C# using Fluent Validation?

MaxLength Validator

Ensures that the length of a particular string property is no longer than the specified value.

Only valid on string properties

String format args:

{PropertyName} = The name of the property being validated

{MaxLength} = Maximum length

{TotalLength} = Number of characters entered

{PropertyValue} = The current value of the property

MinLength Validator

Ensures that the length of a particular string property is longer than the specified value.

Only valid on string properties

{PropertyName} = The name of the property being validated

{MinLength} = Minimum length

{TotalLength} = Number of characters entered

{PropertyValue} = The current value of the property

Example

static void Main(string[] args){    List errors = new List();    PersonModel person = new PersonModel();    person.FirstName = "TestUser444";    person.LastName = "TTT";    PersonValidator validator = new PersonValidator();    ValidationResult results = validator.Validate(person);    if (results.IsValid == false){       foreach (ValidationFailure failure in results.Errors){          errors.Add(failure.ErrorMessage);       }    }    foreach (var item in errors){       Console.WriteLine(item);    }    Console.ReadLine();    } } public class PersonModel{    public string FirstName { get; set; }    public string LastName { get; set; } } public class PersonValidator : AbstractValidator{    public PersonValidator(){       RuleFor(p => p.FirstName).MaximumLength(7).WithMessage("MaximumLength must be 7 {PropertyName}") ;       RuleFor(p => p.LastName).MinimumLength(5).WithMessage("MinimumLength must be 5 {PropertyName}");    } }

Output

MaximumLength must be 7 First Name MinimumLength must be 5 Last Name