What
is Protected Internal Access Modifier
|
• Create
the following class:
public class sampleClass {
protected internal int member1;
}
• Name the class as sampleAssembly.cs and Compile this class by specifying /target:library
• Create
a new program called testClass.cs with the following code:
public class testClass:sampleClass {
public static void Main() {
member1 = 10;
}
}
• Compile this program by specifying /reference:sampleAssembly.dll
• Now try to execute testClass. You will end up in the following error:
“‘sampleClass.member1’ not visible outside assembly”
This is because, you try to access protected internal member of sampleClass from its derived class which is referencing the assembly but not belonging to that assembly. If the testClass is also part of sampleAssembly then you can very well access member1 without any errors.
Note that protected internal access modifier should not be used as a modifier on a class. If you try to use it, then you will end up in the following error: “Namespace elements cannot be explicitly declared as private, protected, or protected internal”
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