C # Instantiates an inherited class and must reference the assembly of the inherited class

0x00 Questions

The type "Model.newmodel" is defined in an unreferenced assembly. You must add a reference to the assembly "Model, version=1.0.0.0, Culture=neutral, Publickeytoken=null". C:\LF\UsingInherit\UsingInherit\Program.cs usinginherit\

origin of 0x01

　　The approximate structure of the program is as follows:

The Newbll class under the BLL inherits the Newmodel class in model

And then in Usinginherit you want to instantiate the class NEWBLL, this happens.

After you add a reference to the model, you can compile the environment

0x02 Summary

　　When instantiating a class of inheriting classes, instantiating an inheriting class, and inheriting a class that is not under the same assembly, in addition to referencing the assembly where the inheriting class resides, refer to the assembly where the inherited class resides!

In fact, whether this is because of the instantiation of the class, because there is no reference to the inherited class, it is not possible to inherit the properties of the class access, the specific principle is not very clear, find a lap did not find, back to learn to add the principle,

Hope to have an understanding of Bo friends can guide twos;

C # Instantiates an inherited class and must reference the assembly of the inherited class