title: Split partial classes into separate files
body: <p>I have a very basic question. In a Visual Studio project, I found two partial classes named <em>Startup</em>. The classes are in different files.</p>
  
  <p><a href="https://i.stack.imgur.com/kAwxk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kAwxk.png" alt="enter image description here"></a></p>
  
  <p>If I click on the first method (ConfigureAuth), it appears in the class file "Startup.Auth.cs". The second file appears in the class file "Startup.cs". How can I organize the classes like that?</p>