title: C# linq in Dictionary<>
body: <p>I have an object <code>allStudents = Dictionary&lt;ClassRoom, List&lt;Student&gt;&gt;()</code></p>
  
  <p>In Linq how would I get a list of all the students who are male? (student.Gender=="m") from all the Classrooms?</p>
  
  <p>Ian</p>