title: How to integrate existing ASP.NET app into existing website in Visual Studio 2010?
body: <p>I have an existing website, built in Visual Studio 2010, that I would like to integrate with a web application I wrote in ASP.NET/C# (also in VS2010). When I try to move the pages to the website (just dragging and dropping), the MyPage.aspx.designer.cs file doesn't stay in the 'group' of files. (.aspx, .aspx.cs)</p>
  
  <p>For reference, (if it matters), my application is an Online Application for my company, where people can apply online.</p>
  
  <p>Any help is appreciated!!</p>
  
  <p>-E</p>
  
  <p>[Update]: This is the error I get when trying to view an integrated page in the browser:</p>
  
  <pre><code>Line 1:  &lt;%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TheEnd.aspx.cs"   Inherits="ApplicantEntry.TheEnd" %&gt;
  
  Line 2: 
  
  Line 3:  &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  </code></pre>