title: The selected object(s) use an unsupported database provider
body: <p>I'm using <code>Visual Studio 2010</code><br />
  In my project I was added a local database <code>Data.sdf</code><br />
  Now I wanna use <code>LINQ TO SQL</code> with it, but when I drag and drop the database table into the LINQ designer , I get the following error in Visual Studio :<br /><br />
  <code>"The selected object(s) use an unsupported database provider"</code></p>
  
  <p>Am I miss something ?<br />
  How can I fix it ?</p>