任何限制的属性数量上的.NET类？ [英] Any limit to number of properties on a .NET Class?

问题描述

接到规格超过800属性添加到一个对象。是他们的任何限制为属性的数量对象可以在C＃（或.NET）？

Received a spec to add over 800 properties to an object. Is their any 'limits' to the number of Properties an object can have in C# (or .NET)?

时的任何性能影响与问候关心这一类的对象有这么多属性？

Is their any performance impacts to be concerned with in regards to objects of this class with this many properties?

谢谢！

推荐答案

该元数据可以有多达24位的参考/每个组件的定义。作为一个属性，则需要每财产2种方法。因此，限制将是23位，或 1＆LT;＆LT; 23日 - 1 整个组装

The metadata can have up to 24-bit references/definitions per assembly. Being a property, you need 2 methods per property. Hence the limit will be 23-bit, or 1 << 23 - 1 for the entire assembly.

更新：

如果他们只是只读属性，极限是 1＆LT;＆LT; 24日 - 1

If they are only read-only properties, the limit would be 1 << 24 - 1.

答到第二个问题：

没有，不会有性能开销。简单的特性很可能由JIT内联。

No, there will be no performance overhead. Simple properties are likely to be inlined by the JIT.

的几点思考：

您将永远不会达到上述限制。有1600万特性成像。这将需要保存的名称太1600万串。假设平均名称为8个字符，那么你正在寻找〜256MB（属性名+方法名）的字符串表的大小，然后您还没有甚至开始编码呢。只是一个想法。

You will never reach the above limit. Imaging having 16 million properties. That will require 16 million strings stored for the names too. Say the average name is 8 chars, then you are looking at a string table size of ~256MB (property name + method name), and then you havent even started coding yet. Just a thought.

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