Building a datagrid table

If I have xml that looks like this:

Code:

---

<map name="Louisville">
  <street name="Libby Lane">
    <house id="100" name="Jones" />
    <house id="101" name="Wilbur" />
  </street>
  <street name="Belland Ave">
    <house id="100" name="Johnson" />
    <house id="101" name="Smith" />
  </street>
</map>

---

Is it possible to have that displayed in a datagrid like

Code:

---

Louisville
  Libby Lane
    100 Jones
    101 Wilbur
  Belland Ave
    100 Johnson
    101 Smith

---

It seems like with the way the xml is the datagrid views each thing as a table so it has a map table then a city table and then a street table.