static public void Run()
{
IExtend interfaceExtend = new SomeClass();
ClassExtend classExtend = new ClassExtend();
StructExtend structExtend = new StructExtend(10);
//You can use extension methods to extend class, interface, structs.
//But all extensions you declare, must be declared in a non-generic, non-nested, static class.
interfaceExtend.ExtensionMethod();
classExtend.ExtensionMethod();
structExtend.ExtensionMethod();
}
//overloaded to extend a struct type
static public void ExtensionMethod(this StructExtend exStruct)
{
Console.WriteLine("Method extended for struct.");
}