问题
Consider we create a partial class in Project1 and we have a Project2 that has reference to Project1 .How is it possible to declare some other method of partial class in Project2 ?
thanks
回答1:
The partial construct is only a compiler functionality, to allow a class to be spread out in several source files. The compiled class still lives in one and only one class library (dll file).
There are two ways to extend a class in another library:
- Inheritance, unless the class is
sealed. This requires that the calling code handles all object instantiation to instantiate the new derived class. - Extension methods, which makes the code look like there are new methods on that class, but that is just syntactic sugar. It won't change the class itself.
回答2:
It is not possible to extend a partial class in another project. Partial is only compiler sugar. The compiler will create only one class in the resulting assembly.
回答3:
You can use the Extension methods that allow you to create additional methods for existing class
回答4:
Partial classes cannot exist out side assembly boundaries!
来源：https://stackoverflow.com/questions/8384084/is-it-possible-to-declare-a-partial-class-in-two-projects