How to reference system.drawing in Visual Studio 2010 Express?
问题 I'm somewhat new to this and I am under the impression that to draw a rectangle that I've created, I need to use system.drawing.graphics. Thing is, I get the error "The type or namespace name 'drawing' does not exist in the namespace 'System' (are you missing an assembly reference?)" and when I right click the References folder in the solution explorer, system.drawing is nowhere to be found. So I'm not exactly sure how to move forward in drawing a rectangle. 回答1: Namespace should be available