title: Can't use ADO.NET Entity Data Model in ASP.NET
body: <p>I add an ADO.NET Entity Data Model to my project but can't use in class or <code>Default.aspx.vb</code>.</p>
  
  <p><img src="https://i.stack.imgur.com/QJYwT.jpg" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/tC1yf.jpg" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/BfvuG.jpg" alt="enter image description here"></p>