title: How to get ID of element by using Html.BeginForm()
body: <p>I have the form and some code below. </p>
  
  <pre><code>@using (Html.BeginForm("Insert", "Question", "POST"))
  {
      &lt;div id="add_tag"&gt;
          &lt;div id="list_tag"&gt;
              &lt;span class="post-tag" id="2"&gt;Phi kim&lt;span class="delete-tag" title="Xóa Tag này"&gt;&lt;/span&gt;&lt;/span&gt;
              &lt;span class="post-tag" id="22"&gt;Hóa Vô Cơ&lt;span class="delete-tag" title="Xóa Tag này"&gt;&lt;/span&gt;&lt;/span&gt;
              &lt;span class="post-tag" id="1"&gt;Lý&lt;span class="delete-tag" title="Xóa Tag này"&gt;&lt;/span&gt;&lt;/span&gt;
          &lt;/div&gt;
          &lt;div class="tag-suggestions hidden"&gt;
          &lt;/div&gt;
      &lt;/div&gt;
      &lt;div class="form-sumit clear"&gt;
          &lt;input type="submit" id="submit-button" value="Post your question" /&gt;
      &lt;/div&gt;
  }
  </code></pre>
  
  <p>And my Insert action in QuestionController like this</p>
  
  <pre><code>    [HttpPost]
      [ValidateInput(false)]
      public ActionResult Insert(FormCollection _form)
      {
          //my code here
      }
  </code></pre>
  
  <p>I want to get id of span tag nested in  by using Html.BeginForm and FormCollection. How can I do that? Plz someone help me. Thanks a lot.</p>