Building e-Commerce Sites with the .NET Framework

Function Overloading

C#—and the .NET Common Language Runtime (CLR)in general—enables you to create methods, with the same name, that vary only in their number and/or type of arguments.

Function overloading is one means by which .NET allows for polymorphism which is the notion that a single entity can perform different functions or a single function different ways but appear as only one object. Listing A.32 shows an example of function overloading.

Listing A.32. Function Overloading

using System; class MyClass{ public int add(int num1, int num2){ return num1 + num2; } public double add(double num1, double num2){ return num1 + num2; } public string add(string string1, string string2){ return string1 + string2; } public static void Main(){ MyClass ...