title: get value from select cell in table
body: <p>I make a select_tag to select value:</p>
  
  <pre><code>#index
   &lt;%= form_tag com_port_setting_write_path do %&gt;
              &lt;%= select_tag "dropdown_cases[]", options_for_select([ ["6 Bottles", 1], ["12 Bottles", 2], ["18 Bottles", 3], ["24 Bottles", 4], ["30 Bottles", 5], ["36 Bottles", 6], ["42 Bottles", 7]]) %&gt;
              &lt;%= submit_tag "Setting",:class =&gt; "btn btn-primary offset4" %&gt;
              &lt;%end%&gt;
  &lt;%end%&gt;
  
  
  #controller
  def index
  
  end
  
  def com_port_setting_write
      params["dropdown_cases"].each do |cases|
          @this_is_the_dropdown_value = cases.to_i
          puts @this_is_the_dropdown_value
      end
      render :com_port_setting
  end
  </code></pre>
  
  <p>It work fine but I want to change it to get value from select cell in table, how can I do that</p>
  
  <p>edit: I want create a table and get value from select cell and I don't know how to do that</p>