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How do I create a subclass in C# for ASP.NET using Visual Studio 2010?
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Sub Class: The class that inherits the other class is known as subclass(or a derived class, extended class, or child class). The subclass can add its own fields and methods in addition to the superclass fields and methods.
Declaring a subclass or derived class is as easy as declaring a superclass. By using a colon (:) after class (subclass) name, one can indicate that it (subclass) has been derived from another class (superclass).
Using subclasses has several advantages: Reuse of code: Through inheritance, a subclass can reuse methods that already exist in a superclass. Specialization: In a subclass you can add new methods to handle cases that the superclass does not handle. You can also add new data items that the superclass does not need.
Inheritance (Derived and Base Class) In C#, it is possible to inherit fields and methods from one class to another. We group the "inheritance concept" into two categories: Derived Class (child) - the class that inherits from another class. Base Class (parent) - the class being inherited from.
Do you mean this?
public class Foo {} public class Bar : Foo {} In this case, Bar is the sub class.
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Here is an example of writing a ParentClass and then creating a ChildClass as a sub class.
using System; public class ParentClass { public ParentClass() { Console.WriteLine("Parent Constructor."); } public void print() { Console.WriteLine("I'm a Parent Class."); } } public class ChildClass : ParentClass { public ChildClass() { Console.WriteLine("Child Constructor."); } public static void Main() { ChildClass child = new ChildClass(); child.print(); } } Output:
Parent Constructor. Child Constructor. I'm a Parent Class.
Rather than rewriting yet another example of .Net inheritance I have copied a decent example from the C Sharp Station website.
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