What to include as artifact(s) when deploying web app?

Hi all,

I'm trying to make a .net web app kick off a build on teamcity every time there's a commit, and not sure what to include as the artifact. Since it's a web app, I don't think I should included the .sln file as the artifact. I can run msbuild to build the individual .csproj but what should I select as the artifacts?

Thanks!