How to check all properties of an object whether null or empty?

Question

I have an object lets call it ObjectA

and that object has 10 properties and those are all strings.

 var myObject = new {Property1=\"\",P         


        

Answer 1

I suppose you want to make sure that all properties are filled in.

A better option is probably by putting this validation in the constructor of your class and throw exceptions if validation fails. That way you cannot create a class that is invalid; catch exceptions and handle them accordingly.

Fluent validation is a nice framework (http://fluentvalidation.codeplex.com) for doing the validation. Example:

public class CustomerValidator: AbstractValidator 
{
    public CustomerValidator()
    {
        RuleFor(customer => customer.Property1).NotNull();
        RuleFor(customer => customer.Property2).NotNull();
        RuleFor(customer => customer.Property3).NotNull();
    }
}

public class Customer
{
    public Customer(string property1, string property2, string property3)
    {
         Property1  = property1;
         Property2  = property2;
         Property3  = property3;
         new CustomerValidator().ValidateAndThrow();
    }

    public string Property1 {get; set;}
    public string Property2 {get; set;}
    public string Property3 {get; set;}
}

Usage:

 try
 {
     var customer = new Customer("string1", "string", null);
     // logic here
 } catch (ValidationException ex)
 {
     // A validation error occured
 }

PS - Using reflection for this kind of thing just makes your code harder to read. Using validation as shown above makes it explicitly clear what your rules are; and you can easily extend them with other rules.