title: Exclude projects from Azure build pipeline
body: <p>I have a solution which I have a number of unloaded projects. When I build the solution locally the unloaded projects are obviously not built. In Configuration Manager, I can't even select configuration, platform, build and deploy options for the unloaded projects.</p>
  <p>Now I have created an Azure Pipeline which also builds the solution. But the unloaded projects are still being built.</p>
  <p>How can I exclude building projects in my pipeline?</p>