public System.Object Clone()

Creates a copy of the current instance.

Returns: A System.Object of the same type as the current instance, containing copies of the non-static members of the current instance.

The exact behavior of this method is unspecified. The intent of the method is to provide a mechanism that constructs instances that are copies of the current instance, without regard for class-specific definitions of the term "copy". Use the System.Object.MemberwiseClone method to create a shallow copy of an object. For more information, see System.Object.MemberwiseClone . This method is required to return an instance of the same type as the current instance. Implement this method to provide class-specific copying behavior. Use the System.ICloneable.Clone method to obtain a copy of the current instance.

using System;
class MyClass :ICloneable {
    public int myField;
    public MyClass() {
        myField = 0;
    }
    public MyClass(int value) {
        myField = value;
    }
    public object Clone() {
        return this.MemberwiseClone();
    }
}
public class TestMyClass {
    public static void Main() {
        MyClass my1 = new MyClass(44);
        MyClass my2 = (MyClass) my1.Clone();
        Console.WriteLine("my1 {0} my2 {1}",my1.myField, my2.myField);
        my2.myField = 22;
        Console.WriteLine("my1 {0} my2 {1}",my1.myField, my2.myField);
    }
}