FluentValidation rule for null object

Question

I\'ve been trying to work out how to create a FluentValidation rule that checks if the instance of an object it\'s validating is not null, prior to validating it\'s properti

Answer 1

Use the Cascade mode.

Here is the example from the documentation.

RuleFor(x => x.Surname).Cascade(CascadeMode.StopOnFirstFailure).NotNull().NotEqual("foo");

Also from the documentation:

If the NotNull validator fails then the NotEqual validator will not be executed. This is particularly useful if you have a complex chain where each validator depends on the previous validator to succeed.