使用部分类 [英] Using partial classes

问题描述

有没有使用的内存，性能等情况下，部分类的开销？

Is there any overhead using partial classes in case of memory, performance etc?

如果我们创建一个部分类，我们可以确定类是否是局部的或者不使用反射？

If we create a partial class can we identify whether the class was partial or not using reflector??

推荐答案

没有。它们被编译到相同的IL，好像他们是不偏。这是一个的纯粹的编译时的事情 - 在CLR甚至不知道他们有没有偏

No. They are compiled to the same IL as if they weren't partial. It's a purely compile-time thing - the CLR doesn't even know that they were ever partial.

请注意，与的 < A HREF =http://msdn.microsoft.com/en-us/library/vstudio/6b0scde8.aspx>部分方法 的引入C＃3，该方法不甚至可以发出在IL除非它的一个文件的方式实现。 。无论是电话和申报由编译器获得剥夺了

Note that with partial methods introduced into C# 3, the method doesn't even get emitted in the IL unless it's implemented in one of the files. Both the calls and the declaration get stripped out by the compiler.

这是可能的，它会一毫秒的潜移默化的分数，当然，编译器变慢：）

It's possible that it'll slow down the compiler an imperceptible fraction of a millisecond, of course :)

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