public class cObject    {        public Create Create = new Create();        class Create        {            public void box(object obj)            {                // your drawing code here            }            public void sphere(object obj)            {                // your drawing code here            }            public void cylinder(object obj)            {                // your drawing code here            }        }    }

cObject temp = new cObject();temp.Create.box(blah);temp.Create.sphere(blah);temp.Create.cylinder(blah);

class cObject {  public static class Create {    public static Box box(...){}    public static Cylinder cylinder(...){}    public static Sphere sphere(...){}  }}Then you can call it the way you described.However, the sane way of doing it would probably be with generics, as someone said above.Then the syntax becomes cObject.Create<Box>() (where Create is a method again)