visual studio - How do you get the solution directory in C# (VS 2008) in code?

Question

Got an annoying problem here. I've got an NHibernate/Forms application I'm working through SVN. I made some of my own controls, but when I drag and drop those (or view some form editors where I have already dragged and dropped) onto some of my other controls, Visual studio decides it needs to execute some of the code I wrote, including the part that looks for hibernate.cfg.xml.

I have no idea why this is, but (sometimes!) when it executes the code during my form load or drag and drop it switches the current directory to C:program filesvs 9.0common7ide, and then nhibernate throws an exception that it can't find hibernate.cfg.xml, because I'm searching for that in a relative path.

Now, I don't want to hard code the location of hibernate.cfg.xml, or just copy hibernate.cfg.xml to the ide directory (which will work). I want a solution that gets the solutions directory while the current directory is common7ide. Something that will let someone view my forms in the designer on a fresh checkout to an arbitrary directory on an arbitrary machine. And no, I'm not about to load the controls in code. I have so many controls within controls that it is a nightmare to line everything up without it.

I tried a pre build event that made a file that has the solution directory in it, but of course how can I find that from common7ide? All the projects files need to be in the solution directory because of svn.

Thanks for your help guys, I've already spent a few hours fiddling with this in vain.

UPDATE: I set hibernate.cfg as an embedded resource. For each configuration I just simply make a new build configuration, debug, release, XYZ. In most cases I'd recommend embedding any files you depend on to run the program. It makes it much simpler to build an installer.

Answer 1

This is probably coming a little bit late, but I've found a solution at http://www.tek-tips.com/viewthread.cfm?qid=1226891&page=164. Since I am using Visual Studio 2010, I made a few minor changes. You have to reference the EnvDTE and EnvDTE100 (EnvDTE90 for VS2008),

string solutionDirectory = ((EnvDTE.DTE)System.Runtime
                                              .InteropServices
                                              .Marshal
                                              .GetActiveObject("VisualStudio.DTE.10.0"))
                                   .Solution
                                   .FullName;
solutionDirectory = System.IO.Path.GetDirectoryName(solutionDirectory);

Of course I used VisualStudio.DTE.10.0, you should probably use VisualStudio.DTE.9.0.

Good luck!