What protected internal access modifier

Question

Define protected internal access modifier in c# and how it is differ from internal access modifier.

Sukesh Marla · Answer

It means Protected Or Internal. ==>Accessible anywhere in same assembly it is created + Sub classes in other assembly. Check this is correct answer if it helped.

Vulpes · Answer

Can I just add that the CLR also caters for protected AND internal access but (apart from reflection emit) this is not supported by either C# or VB.NET. I believe there were two reasons for this: 1. The language designers didn't think it would be used much if at all. 2. They couldn't think of a suitable name for it anyway :) However it is supported in C++/CLI ( as 'protected private') for anyone who uses that language.

Santhosh Kumar Jayaraman · Answer

Internal- You can access withing that assembly. Protected- you can access it in child classes. So protected internal will be a combination of both. You can access within the same assembly as well as child classes present inside other assembly. Let me tell you smalll example. I have assembly1 assembly2 In assembly1 i have a parent Class Vehicle. In the same assembly i have a class Car derived from vehicle. Now in assembly2  i have class Bus derived from vehicle(Assembly1). Now if i have 2 methods CalculateMileage GetFuelCapacity Calculate Mileage i declared it as internal access specifier and GetFuelCapacity i declared it as protectedinternal. Now when i check the methods for Bus i can see only GetFuelCapacity thats because its declared as protected internal. Hope this would help you to understand well..