How do you add an existing form to a new project?
c#, visual-studio-2010, winforms
Solution
After some more research I discovered the source of the issue. It is correct that all one has to import is the `*.cs` file. The caveat lies in the project type. If working in a Class Library project, another step must be performed.
- Add a reference to `System.Windows.Forms.dll` and `System.Drawing`.
- Import the `*.cs` file
Notes:
A. The files are only properly recognized after I performed these steps and then tried to open the file. Suddenly VS "wakes up" and fixes the files.
B. Order of the steps does not matter. If you already imported *.cs files, just fix the references.
C. If one is missing other references e.g. DevExpress or other 3rd party control imports), the *.cs files will not display properly until this has been resolved.
Problem
I have never been able to successfully add a `Form` from an existing file to a new project. I read on a blog that you add just the *.cs file and the dependencies come in. Well, I tried this and the file did dragin and associate the *.designer and *.resx files. But, the Form icon does not display. Instead, the file looks like a normal *.cs file image. And, when I double click the file I get the code behind instead of the form object. Is it possible to add existing Forms and get them properly recognized?