看看新的C#7.0 ValueTuples,我想知道它们是否将完全取代Anonymous Types.我知道ValueTuples是结构,因此其行为与作为类的Anonymous Types有所不同.但是,我看不到用例,在这种情况下,我宁愿使用Anonymous Type而不是ValueTuple.
Looking at the new C# 7.0 ValueTuples, I am wondering if they will completely replace Anonymous Types. I understand that ValueTuples are structs and therefore behave a bit differently than Anonymous Types which are classes. I don't see a use-case, however, in which I would prefer using an Anonymous Type over a ValueTuple.
在C#7.0中是否有使用Anonymous Type优于使用ValueTuples的用例?
Are there any use-cases where using an Anonymous Type would still be beneficial over using ValueTuples in C# 7.0?
推荐答案匿名类型是不可变的,元组不是.这反映在以下事实上:匿名类型公开属性,元组公开字段.数据绑定几乎总是需要属性.
Anonymous types are immutable, tuples are not. This is reflected in the fact that anonymous types expose properties, tuples expose fields. Data binding almost always requires properties.
大量现有代码仅适用于引用类型,不适用于值类型.特别想到的是Entity Framework中的预测:对值类型的预测根本没有实现.
Plenty of existing code only works with reference types, not with value types. What in particular comes to mind are projections in Entity Framework: projections to value types are simply not implemented.
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C#7.0 ValueTuples与匿名类型
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