Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
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
Updated on: 25-Nov-2020
2K+ Views
Advertisements