Sales export (2010.2)

I need to export sales from some date. I use v. 2010.2.
Information I need is:

1) List of the items:
Id = internalId,
Name = itemId

2) List of sales:
TransactionDate = tranDate,
Quantity = quantity,
UniqueId = TranInternalId + "." + line + "." + item.InternalId

And I also query for the type of the item to proof my concept.

For the list of the items I use this search (C# code):

var search = new ItemSearchAdvanced      {          columns = new ItemSearchRow              {                  // Fields to return                  basic = new ItemSearchRowBasic                      {                          internalId = new[] { new SearchColumnSelectField() },                          itemId = new[] { new SearchColumnStringField() },                          type = new[] { new SearchColumnEnumSelectField() }                      }              }      };

And get these item types:

_markup,_discount,_subtotal,_description,  _service,_otherCharge,_inventoryItem,_nonInventoryItem

For the second list I use this search (C# code):