create a rectangle in c#

[lcm_pang]

can anyone could teach me how to create a rectangle in c#???

cause i have tried to use
using System.Drawing.Drawing2D;
and
rectangle = new Rectangle(100, 170, 220, 120);

but it is not working for those code

[Bartimäus]

Here's a tut :
Draw a rectangle : Draw Rectangle2DC# / CSharp Tutorial