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林克表示反对——选择区别
原标题:Linq to object - Select Distinct

我可以清楚地说明,为什么这份《林克声明》没有像预期的那样发挥作用:

    Dim distinctSurchargesList = (From thisparent As Parent In ThisParentCollection _
                                    From thisChild As Child In thisparent.theseChildren _
                                    Select New With {.childId = thischild.Id}).Distinct()

我假定,这将产生一种新的匿名类型,而这种分类是不同的。 相反,它会产生一种“这种ParentCollection”的收集规模,其中重复了“MyAnonymousType”(复制品)。

谁能告诉我什么地方会错了?

增 编

最佳回答

根据参考价值,而不是根据<儿童编码>/代码>领域的价值,将收集匿名资料进行比较。 每个匿名类别都有不同的标语,因此它们都是不同的。

只是选择了该身份证,而没有将它归入匿名类别。

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