Mark parameters as NOT nullable in C#/.NET?

Question

Is there a simple attribute or data contract that I can assign to a function parameter that prevents null from being passed in C#/.NET? Ideally this would also

Answer 1

Check out the validators in the enterprise library. You can do something like :

private MyType _someVariable = TenantType.None;
[NotNullValidator(MessageTemplate = "Some Variable can not be empty")]
public MyType SomeVariable {
    get {
        return _someVariable;
    }
    set {
        _someVariable = value;
    }
}

Then in your code when you want to validate it:

Microsoft.Practices.EnterpriseLibrary.Validation.Validator myValidator = ValidationFactory.CreateValidator();

ValidationResults vrInfo = InternalValidator.Validate(myObject);