I have somethink like that:

RuleFor(x =>x.xd != null).NotEmpty(); // I dont want to match this

RuleFor(x =>x.xd != null);            // I want to match only this, independently of that, what is in brackets

CodePudding user response：

Try:

^(?!.*\(.*\).*\(.*\)).*;$

Regex demo.

• (?!.*\(.*\).*\(.*\)) - don't match string where two (.*) are found
• .*;$ - match all where the last character is ;