title: I can't add DB to ASP.NET project
body: <p>I'm new to ASP.NET MVC, and I have a problem.</p>
  
  <p>I created my database in SQL Server Express, using SQL Server Management Studio.
  I created a new ASP.NET project, so I want do add that database into the project.</p>
  
  <p>I'm going:</p>
  
  <ul>
  <li><code>App_data</code> (folder) -> right click -> Add -> Existing item, find my DB on disk and when I click "Add", I got alert window "Access is denied".</li>
  </ul>
  
  <p>What should I do?</p>
  
  <p>Please help, ty :)</p>