title: can anyone help me i have problem with this message below
body: <pre><code>namespace EmployeeService.Controllers
  {
      public class EmployeeController : ApiController
      {
          public IEnumerable&lt;Customer&gt; Get()
          {
              using (Test_DBEntities test = new Test_DBEntities())
              {
                  return test.Customers.tolist();
              }
          }
      }
  }
  </code></pre>
  <p>Note: <code>EmployeeDataAccess.Test_DBEntities</code>: type used in a <code>using</code> statement must be implicitly convertible to <code>System.IDisposable</code>.</p>