问题
I met this problem at the beginning of my work. I am using Mono 2.10 with MonoDevelop 2.8. When I create a new C# project, I can not use:
using System.Windows.Forms
because there is no such namespace here.
I searched for some answer and tried:
apt-get install libmono-system-windows-forms4.0-cil and
apt-get install libmono-winforms2.0-cil
but they all tell me I have installed them. So now I'm wondering if I can not write windows forms application with Mono but I can only run such application with it?
回答1:
Although this was answered in the comments, newbies (like me) might appreciate a more spelled-out version:
- In monodevelop, click the gear/settings icon next to the References folder (or right-click the References folder)
- Select 'Edit References'
- Search for windows
- Check System.Windows.Forms
- Click OK
来源：https://stackoverflow.com/questions/15668986/how-can-i-use-system-windows-forms-in-monodevelop-on-ubuntu