Monday, January 24, 2011

Different betwwen public, private, protected

What is the different between public, private, protected....


public
The type or member can be accessed by any other code in the same assembly or another assembly that references it.

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.

internal
The type or member can be accessed by any code in the same assembly, but not from another assembly.

protected internal
The type or member can be accessed by any code in the same assembly, or by any derived class in another assembly.

Static
The static modifier on a class means that the class cannot be instantiated, and that all of its members are static. A static member has one version regardless of how many instances of its enclosing type are created.

A static class is basically the same as a non-static class, but there is one difference: a static class cannot be instantiated. In other words, you cannot use the new keyword to create a variable of the class type. Because there is no instance variable, you access the members of a static class by using the class name itself.

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