title: Is there a "not equal" in a linq join
body: <p>I am trying accomplish the LINQ query below but I need a "not equal" instead of equal, so that filteredEmployees has all employees from groupA minus groupB. </p>
  
  <pre><code>List&lt;Employee&gt; groupA = getEmployeeA();
  List&lt;Employee&gt; groupB = getEmployeeB();        
  
  var filteredEmployees = from a in groupA 
                          join b in groupB on a.Name equals b.Name
                          select a;
  </code></pre>