System.Drawing does not exist?

Question

I'm trying to create a validation image using class library in asp.net, but that is not the question.

Anyway, my question is... well... system.drawing does not exist so I cant use "bitmap". From similar questions, people tell to add reference. But I already did that, restarted my computer etc. It doesn't work.

What can I do besides adding reference? It doesn't work or am I doing it wrong ?

Here is basically what I did:

• Right click to references, which is under solution,
• add reference
• add system.drawing

But still, it does not appear in intellisense or tells me "it does not exist, try adding reference" when I type it manually.

Answer 1

I suspect that you added the System.Drawing reference to the wrong project. Please verify that the Validator.cs file in the project that has the System.Drawing reference.

Answer 2

You can add referrence 'System.Drawing.dll' to your project.

Answer 3

I had the same issue and solved it, click on the project menu, then Add reference, reference manager will open, then click on the assemblies tab, search for System.Drawing and check it then press ok. it will recognize the package or name space.