Difference between protected and private protected .

Pravesh Kumar

8y3.7kVisual Basic .NET

what is difference between protected and private protected access modifiers.

7 Replies

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Daril4y ago
Now let's see an example.

We have two variables in class Floor pri and pro.

The pri is declared private and the pro is declared protected.

The pri cannot be accessed in the class A. But the pro can be accessed in class B. Because to access the protected, it must be in the same assembly. The private can only be accessed by the functions inside the same class..
+2
Puneet Kankar6y ago
Hi Pravesh ,

For more details check given below links.

Protected

The type or member can be accessed only by code in the same class, or in a class that is derived from that class.

Private protected

The type or member can be accessed only within its declaring accembly, by code in the same class or in a type that is derived from that class.

https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/access-modifiers

https://www.c-sharpcorner.com/article/private-protected-access-modifier-in-c-sharp/

https://code-maze.com/csharp-basics-access-modifiers/
+4
Mageshwaran R6y ago
private
The type or member can only be accessed by code in the same class or struct.
protected
The type or member can only be accessed by code in the same class or struct, or in a derived class.
private protected (added in C# 7.2)
The type or member can only be accessed by code in the same class or struct, or in a derived class from the same assembly, but not from another assembly.
+4
Jaish Mathews8y ago
Explanation already given by members. Below adding sample.

Private Protected Access in Same Assembly(Valid)
// Assembly1.cs
// Compile with: /target:library
public class BaseClass
{
    private protected int myValue = 0;
}

public class DerivedClass1 : BaseClass
{
    void Access()
    {

        // OK, accessed through the current derived class instance
        myValue = 5;
    }
}
Private Protected Access in Different Assembly(not valid)
// Assembly2.cs
// Compile with: /reference:Assembly1.dll
class DerivedClass2 : BaseClass
{
    void Access()
    {
        // Error CS0122, because myValue can only be
        // accessed by types in Assembly1
        // myValue = 10;
    }
}
+2
Jignesh Kumar8y ago
Please have a look its pretty cleae in this vedio

https://www.youtube.com/watch?v=KTk_XNQMPr4&t=162s
+2
Pravesh Kumar8y ago
What your post is The type or member can only be accessed by code in the same class or struct, or in a derived class.private protected (added in C# 7.2)The type or member can only be accessed by code in the same class or struct, or in a derived class from the same assembly, but not from another assembly. So can we acces protected out side of assembly if yes then what is role of protrcted internal
+2
Jignesh Kumar8y ago
Please find below link and try to check with small practicle demo.
https://stackoverflow.com/questions/614818/what-is-the-difference-between-public-private-protected-and-having-no-access
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