Visual Studio Builds Projects Every Time I Run

Question

I have a .NET solution in Visual Studio 2010 with a bunch of projects. Up until recently, when I would run the startup project from within the IDE, projects would only buil

Answer 1

Go to Tools -> Options -> Project and Solutions -> Build and Run. Look at the options there. 'Only build startup projects and dependencies on Run' should be checked.

Additionally, you can set the build output (in the same options screen) to Detailed or Diagnostic to see if you can find any clues why the projects are built every time.