Is it a good practice to throw an exception on Validate() methods or better to return bool value?

Question

Is it recommended or not to throw exceptions from Validation methods like:

ValidateDates();
ValidateCargoDetails();

Apart from this : Is t

Answer 1

Throwing exception must not be used to control the flow of the application. As the name implies, it happens in exceptional cases while validation could commonly fail. They are also expensive and impact the performance.

I would go with returning a boolean plus a string for reason.