static void Main()
{
MyData md = new MyData(3, 4, 5);
Console.WriteLine("Sum: {0}", md.Sum());
Console.WriteLine("Average: {0}", md.Average());
}
static void Main(string[] args)
{
MyData md = new MyData(3, 4, 5); // constrction function
Console.WriteLine("Sum: {0}", md.Sum());
Console.WriteLine("Average: {0}", md.Average());
}
static void Main(string[] args)
{
MyData md = new MyData(3, 4, 5);
Console.WriteLine("Sum: {0}", md.Sum());
Console.WriteLine("Average: {0}", md.Average()); // Instance invocation; can be used when ...
// The keyword 'this' is used before the type name in the parameter declaration of the extension method.
#region Alternate Syntax
//Console.WriteLine("Average: {0}", ExtendMyData.Average(md)); // Static invocation
#endregion
Console.ReadLine();
}
public static double Average(this MyData md)
{
return(md.Sum() / 3);
}
