How to get the raw HTML of a node

Use node.to_s, or just node:

nodes = doc.search("//tr[@class='tablebX']")
nodes.each do |node|
   puts node.to_s
   puts '-'*40
end

With additional sanity-check HTML (yours, doubled, with a tr of a different class in the middle) I get:

<tr class="tableX">
<td align="center">
<font size="2"><a href="javascript:open('9746')">9746</a></font> 
            </td>
            <td align="center"><font size="2">2012-06-26</font></td>
</tr>
----------------------------------------
<tr class="tableX">
<td align="center">
<font size="2"><a href="javascript:open('9746')">9746</a></font> 
            </td>
            <td align="center"><font size="2">2012-06-26</font></td>
</tr>
----------------------------------------

The correct method is .children. It returns all the html inside the selected element.

So having this code:

<tr class="container">
  <td>value</td>
</tr>

And using this process:

data = Nokogiri::HTML(html)
data.css("tr.container").children

Will return this html:

<td>value</td>

I guess my answer is too late but that's the exact codes you need.

You can add children.to_html. Try to do that below:

doc = Nokogiri::HTML(html)

nodes = doc.search("//tr[@class='tablebX']")

nodes.each do |node|
   node.children.to_html # or node.content
end