![]() This means you can declare a private element inside a module, class, or structure, but not at the level of a source file or namespace, inside an interface, or in a procedure.Īt the module level, the Dim statement without any access level keywords is equivalent to a Private declaration. You can use Private only at module level. The following code shows a sample Private declaration: Private _numberForMeOnly As Integer The Private keyword in the declaration statement specifies that the element can be accessed only from within the same module, class, or structure. This means you can declare a protected friend element in a class, but not at the level of a source file or namespace, or inside an interface, module, structure, or procedure. You can use Protected Friend only at class level, and only when you declare a member of a class. The following code shows a sample Protected Friend declaration: Protected Friend stringForProjectAndHeirs As String The Protected Friend keyword combination in the declaration statement specifies that the element can be accessed either from derived classes or from within the same assembly, or both. This means you can declare a friend element at the level of a source file or namespace, or inside an interface, module, class, or structure, but not in a procedure. ![]() You can use Friend only at module, interface, or namespace level. ![]() The following code shows a sample Friend declaration: Friend stringForThisProject As String The Friend keyword in the declaration statement specifies that the element can be accessed from within the same assembly, but not from outside the assembly. This means you can declare a protected element in a class, but not at the level of a source file or namespace, or inside an interface, module, structure, or procedure. You can use Protected only at class level, and only when you declare a member of a class. The following code shows a sample Protected declaration: Protected Class ClassForMyHeirs The Protected keyword in the declaration statement specifies that the element can be accessed only from within the same class, or from a class derived from this class. This means you can declare a public element at the level of a source file or namespace, or inside an interface, module, class, or structure, but not in a procedure. You can use Public only at module, interface, or namespace level. The following code shows a sample Public declaration: Public Class ClassForEverybody The Public keyword in the declaration statement specifies that the element can be accessed from code anywhere in the same project, from other projects that reference the project, and from any assembly built from the project. For example, a Public variable in a Private structure can be accessed from inside the class that contains the structure, but not from outside that class. Code that cannot access a containing element cannot access any of its contained elements, even those declared as Public. This is determined not only by how you declare the element itself, but also by the access level of the element's container. The access level of a declared element is the extent of the ability to access it, that is, what code has permission to read it or write to it.
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