Private Protected (Visual Basic)
The Private Protected
keyword combination is a member access modifier. A Private Protected
member is accessible by all members in its containing class, as well as by types derived from the containing class, but only if they are found in its containing assembly.
You can specify Private Protected
only on members of classes; you cannot apply Private Protected
to members of a structure because structures cannot be inherited.
The Private Protected
access modifier is supported by Visual Basic 15.5 and later. To use it, you can add the following element to your Visual Basic project (*.vbproj) file. As long as Visual Basic 15.5 or later is installed on your system, it lets you take advantage of all the language features supported by the latest version of the Visual Basic compiler:
<PropertyGroup>
<LangVersion>latest</LangVersion>
</PropertyGroup>
For more information see setting the Visual Basic language version.
Note
In Visual Studio, selecting F1 help on private protected
provides help for either private or protected. The IDE picks the single token under the cursor rather than the compound word.
Rules
- Declaration Context. You can use
Private Protected
only at the class level. This means the declaration context for aProtected
element must be a class, and cannot be a source file, namespace, interface, module, structure, or procedure.
Behavior
Access Level. All code in a class can access its elements. Code in any class that derives from a base class and is contained in the same assembly can access all the
Private Protected
elements of the base class. However, code in any class that derives from a base class and is contained in a different assembly can't access the base classPrivate Protected
elements.Access Modifiers. The keywords that specify access level are called access modifiers. For a comparison of the access modifiers, see Access levels in Visual Basic.
The Private Protected
modifier can be used in these contexts:
Class Statement of a nested class
Delegate Statement of a delegate nested in a class
Enum Statement of an enumeration nested in a class
Interface Statement of an interface nested in a class
Structure Statement of a structure nested in a class
See also
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