c# – 如何使用RuleForEach验证集合项

我一直在使用(成功)以下验证:

RuleFor(x => x.Items)
  .SetCollectionValidator(new ItemValidator())
  .Must(coll => coll.Sum(item => item.Percentage) == 100)
  .When(x => x.Items != null);

由于上面的SetCollectionValidator(将被弃用),我将其更改为:

RuleForEach(x => x.Items)
  .SetValidator(new ItemValidator())
  .Must(coll => coll.Sum(item => item.Percentage) == 100)
  .When(x => x.Items != null);

但是,Sum不再被识别.

我怎样才能解决这个问题?

最佳答案 您可以使用两个单独的规则.其中一个是验证项目,另一个是验证集合.

RuleForEach(x => x.Items)
  .SetValidator(new ItemValidator());

RuleFor(x => x.Items)
  .Must(coll => coll.Sum(item => item.Percentage) == 100)
  .When(x => x.Items != null);
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