如何从其他结构引用中调用C＃中的Structures [英] How to call Structures in C# from other structure reference

问题描述

我正在为一些电子设备开发c＃固件。该电气设备具有不同的节点。对于节点的配置，我正在创建一个结构，但事情是这个设备有100个节点，所以它意味着配置我必须创建100个结构或我还能做的其他事情。？



我的结构是这样的

Hi,

I am developing a firmware in c# for some electrical device. This electrical device have different Nodes. For the configuration of the nodes I am creating a structure but the thing is There are 100 Nodes of this device so it means for the configuration do I have to create 100 structures or there is something else I can do.?

my structure is like this

public struct {
            private UInt16 NodeAddress;
            private UInt16 NodeType;
            private UInt16 NumberOfSupportedSensors;
            private UInt16 NodeStatus;
            private UInt16 BaudRate;
            private UInt16 TimeOutValue;
            private UInt16 NumberOfPolls;
            private UInt16 ScanningPriority;
            private UInt16 CH1Status;
}

谢谢

Azeem

thanks
Azeem

推荐答案

你只需要创建 100 （可能）相同 struct 实例 $ c>。

如果您担心内存使用情况并且许多节点共享部分状态，那么您可以查看自由设计模式 [ ^ ]。

You just have to create 100 (possibly) different instances of the same struct.
If you are concerned about memory usage and many nodes share part of their state, then you might have a look at the Flyweight design pattern[^].

作为Carlo解决方案的替代方案，您可以创建一个结构数组：

As an alternative to Carlo's solution, you could just create an array of the structs:

MyNode[] myNodes = new MyNode[100];

由于struct是一个值类型，它将在一个语句中创建你需要的所有实例。



如果你有一个变量节点数，那么你可能想要一个List< MyNode>相反，但在这种情况下，你可能根本不需要一个结构，你想要一个类，因为结构必须被装箱到堆上。实际上，根据指南，你的结构应该真的是一个类 - 它超过了MS推荐的16字节限制。



看看这里：< a href =http://www.codeproject.com/Articles/728836/Using-struct-and-class-whats-that-all-about>使用struct和class - 这是怎么回事？ [ ^ ]它会解释更多。

Since a struct is a value type, that will create all the instances you need in one statement.

If you have a variable number of nodes, then you probably want a List<MyNode> instead, but in that case, you probably don't want a struct at all, you want a class as the struct will have to be boxed onto the heap anyway. As it happens, your struct should really be a class anyway, according to the guidelines - it exceeds the 16 byte limit that MS recommend.

Have a look here: Using struct and class - what's that all about?[^] and it will explain more.

Quote：

我有100个节点要配置吗意思是我必须在c＃中创建100个结构。例如，在c中，我们只能传递结构的引用，并且能够在c中轻松复制值。在c＃中有类似的东西吗？

I have 100 nodes to configured does it mean I have to create 100 structures in c#. for example in c we can only pass the reference of the structure and able to copy the values easily in c. is there anything like that in c#?

对于第一个，我想使用类而不是结构 - 在C ++和C＃中它是可能的（与C相反）。



现在（有一个类）你可以写一个或多个复制构造函数来复制/调整/创建新的类实例。



（嗯，实际上你也可以让它具有结构，但......班级很简单;））



如果您需要创建和管理类/结构的多个实例，请参阅上面的答案（

For the first, I would like to use the class instead of structure - in C++ as well as C# it is possible (in contrast to C).

Now (having a class) you can write one or more copy constructor to copy / adjust / create the new instance of class.

(Well, actually you can make it having structure as well, but ... the class is simple cooler ;) )

If you need to create and manage several instances of the class / structure, see the answers above ( a

List<Nodes>

或者其他什么否则）

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