How to configure VS to compile only changed code

Question

I have very big solution, and it compiling every time I\'m tring to debug.
So I know that I can to disable building of all projects at all in solution configuration, but is

Answer 1

Visual Studio actually does that out of the box if you do a Build (not a Rebuild). However, it'll deal with some project types better than others. For example a setup or deployment project will always be built.

You could unload any project that you don't need to speed up the build.

Additionally, I find it works well to start the application without debugging and attach the debugger once the application is running. From what I can tell this minimizes the number of debug symbols being loaded to what is actually being used by the running application.

As far as I know MSBuild (the build engine used by VS) will auto-detect what to rebuild based on what files have been changed. So make sure you don't have any generated files that are updated with each build. For example, when you update the (assembly) version using source control meta data. Any changed file will trigger a build of all the projects that use it and all the projects that depend on them. A setup like this will effectively rebuild most of your application every time.