title: VS2010, ASP.Net and .designer.cs files
body: <p>Came across this curiosity recently.</p>
  
  <p>One solution, with two projects within it (ORM and website).  Visual Studio 2010 Ultimate on both computers, setup identically.</p>
  
  <p>Solution and projects created on computer A, all .aspx pages have .designer.cs files.</p>
  
  <p>Solution and projects copied to computer B and new web pages added, all new .aspx pages do not have .designer.cs files although the website still works fine.</p>
  
  <p>Move new content back to computer A, and it now errors on rebuild with errors relating to the missing .designer.cs files.</p>
  
  <p>Why would this happen?  Why would two VS2010 installs handle this differently with the same solution and project files?</p>