Can only get service data provider working with table.. having trouble with my own array?

Content

HI All,

I have an endpoint from an outside application that returns data looking like:
{ } formName
  { } data
   headerfield1
   headerfield2
    { } gridData
      [ ] rowset
        { } item[i]
           quantityordered.value
           itemnumber.value
           description.value

I can use a data service provider and point it to the endpoint and pick the fields you see there (quantityordered, itemnumber, description) and this works well. However, when doing it this way I can ONLY pick the values under the { } item[i], my problem is I also need to get at other values under the higher level { } data object. Esentially, this form has header and detail information, the detail information is a grid of data which the data service provider can select. The header detail under the { } data object is unavailable to me via