title: How to fix object set in grid?
body: <p>In my application i have a class like: </p>
  
  <pre><code>public class Team {
      private Country teamId;
      private Set&lt;Player&gt; playerSet;
      private Set&lt;Player&gt; substitutes;
      private Set&lt;Coach&gt; coachSet; 
  }
  </code></pre>
  
  <p>When i instantiate a grid like:</p>
  
  <pre><code>Grid&lt;Team&gt; grid = new Grid&lt;&gt;(Team.class);
  </code></pre>
  
  <p>and set allTeam() from database it shows object for playerSet and coachSet.</p>
  
  <p>My question is i just want to show players name and coach name concate by ,or \n.</p>
  
  <p>Any idea how can i do that?As a beginner it is complicated for me</p>