New Features in C# 2.0—Limit Access: What just happened?
Microsoft .NET Framework, ASP.NET, Visual C# (CSharp, C Sharp, C-Sharp) Developer Training, Visual Studio
What just happened?
The design of your Employee class calls for the string name to be private.
You anticipate that one day you’ll want to move this to a database field, so
you resolve that all access to this field will be through a property, Name.
Other classes are free to access Name, but you do not want them to set the
name directly. If they are going to change the name field, they must do
so through the ChangeName virtual method. You anticipate that derived
classes will do different work when an employee changes his name.
Thus you want to provide access to the set accessor to this class’s methods
and to methods of any class that derives from this class, but not to
other classes. You accomplish this by adding the restricting access modifier
protected to the set accessor:
protected set { name = value; }
 
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