title: how to make 2 ways data-binding for td in angular 2?
body: <p>I need to use this editable column to display a "test" variable :</p>
  
  <pre><code>&lt;td contentEditable="true" ngDefaultControl [(ngModel)]="test"&gt;{{test}}&lt;/td&gt;
  </code></pre>
  
  <p>My td element displays the initial value of "test", but when I edit the td (using my keyboard), "test" does not change.</p>
  
  <p>I have tested the same thing using input, and it works :</p>
  
  <pre><code>&lt;input id="myinput" name="myinput" type="text" [(ngModel)]="test"&gt;
  </code></pre>
  
  <p>So what is the problem ?</p>