在运行时设置DataType以声明变量 [英] Set DataType at runtime for already declare variable

问题描述

你好，

我在类中声明了变量，即
public static Logic1 MyVar;

现在我想在运行时将变量数据类型从"Logic1"更改为;改为"Logic2"，这样"MyVar"将用于访问Logic2中某些零件代码的变量.

我需要此权限，因为我对用户选择的逻辑类型进行了设置.

在运行时更改dataType必须是永久的，因此，每次"Myvar"浏览器都不需要类型转换.

---

感谢您的帮助！

解决方案

在C#中是不可能的！！！！！ !!!!

但是，解决方法仍然存在.

声明一个接口ILogic，并放置在Logic1&之间共享的所有方法/成员. Logic2类.同时具有Logic1& Logic2实现此接口ILogic.

然后创建一个ILogic myVar类型的变量；现在，如果说myVar = new Logic1();那么myVar将引用Logic1.一段时间后，如果您说myVar =某个Logic2实例-那么它将引用Logic2.

希望能回答您的问题.

谢谢，
Viral.

Hello,

I m having variable declared in class
i.e
public static Logic1 MyVar;

now at the runtime i want to change variable datatype  from "Logic1" to "Logic2"
so "MyVar" will be used for accessing variables in Logic2 for some Part code.

This wat i need because i ve a setting on type of logic selected by user.

Changing dataType at runtime must be permenent, so no type casting is required every time the "Myvar" object is accesssed for use.

---

Thanks for the help!

解决方案

That is not possible in C#!!!!!!!!!!!!

However, a work around is there.

Declare an interface ILogic and put all the methods/members that are shared between Logic1 & Logic2 classes. Have both the classes Logic1 & Logic2 implement this interface ILogic.

Then create a variable of type ILogic myVar;

Now, if you say myVar = new Logic1(); then myVar would refer to Logic1. After some time if you say myVar = some Logic2 instance - then it would refer to Logic2.

Hope that answers your question.

Thanks,
Viral.

这篇关于在运行时设置DataType以声明变量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！