' Add relations between tables. The Nested property ensures

' that the equivalent XML will nest child rows inside of

' parent rows

ds.Relations.Add("EmployeeOrders", _

 ds.Tables("Employees").Columns("EmployeeID"), _

 ds.Tables("Orders").Columns("EmployeeID"))

ds.Relations("EmployeeOrders").Nested = True

ds.Relations.Add("OrdersDetail", _

  ds.Tables("Orders").Columns("OrderID"), _

   ds.Tables("OrderDetails").Columns("OrderID"))

ds.Relations("OrdersDetail").Nested = True