title: Adding an item to a Tuple in C#
body: <p>I have a tuple array as shown below;</p>
  
  <pre><code>var games = new Tuple &lt;string, Nullable&lt;double&gt;&gt;[] 
                    { new Tuple&lt;string, Nullable&lt;double&gt;&gt;("Fallout 3:    $", 13.95),
                      new Tuple&lt;string, Nullable&lt;double&gt;&gt;("GTA V:    $", 45.95),
                      new Tuple&lt;string, Nullable&lt;double&gt;&gt;("Rocket League:    $", 19.95) };
  </code></pre>
  
  <p>I am wondering if there is a function would let me add another item to this list.</p>
  
  <p>Please help!</p>
  
  <p>Thanks, Sean</p>