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c#asp.netfluentvalidation

FluentValidation: Must clause is ignoring the When clause and running regardless

I'm using FluentValidation in my project. There is an issue that the Must clause is ignoring the When clause. Below is a code sample.

RuleFor(model => model.Field)
  .Must(somePredicate)
     .When(conditionToRunValidation)

But the Must clause ignores the When and gives error even when the conditionToRunValidation is false.

I'd be grateful for any sort of guidance to solve this issue.

Solution

  • This code seems to work, so probably your condition is not false. You should try debugging your code and check if conditionToRunValidation really is false, or post more of your code, where you set the value of it.