Chapter 12 Extras.

Hint

I had a few problems with this one. I found that if I tried to write this program as a Console Application I would get the following error:

C:\BegVCSharp\CT\Ellipse\Class1.cs(3): The type or namespace name 'Drawing' does not exist in the class or namespace 'System' (are you missing an assembly reference?)

But if I wrote the program as a Windows Application I didn't encounter this problem. But supposedly at this stage we haven't done any Windows programming. Did Computeach not tell us something here......?
 

Chapter 12 code