[ASP.net] Master/detail - pretvorba VB v C#

Vbistvu dost preprosto vprašanje, po tem članku skušam zadevo izdelat v C#. VB mi povzroča težave in nekako mi ni jasno kako bi tole pretvoru:

Kako naj definiram te dve funkciji da bo zraven šel result ds.Tables("tblDetails"), nekako vedno dobim error: 'System.Data.DataSet.Tables' denotes a 'property' where a 'method' was expected

Function GetDetails(ByVal x As String)
Dim conn As New SqlConnection("server=std04;uid=sa;pwd=;database=northwind")
Dim strSQL As String
Dim ds As New DataSet()

strSQL = "SELECT TOP 5 Customers.CompanyName, Products.ProductName, "
strSQL &= "convert(varchar, Orders.Orderdate, 101) as CDATE "
strSQL &= "FROM Employees INNER JOIN "
strSQL &= "Orders ON Employees.EmployeeID = Orders.EmployeeID INNER JOIN "
strSQL &= "Customers ON Orders.CustomerID = Customers.CustomerID INNER JOIN "
strSQL &= "[Order Details] ON Orders.OrderID = [Order Details].OrderID INNER JOIN "
strSQL &= "Products ON [Order Details].ProductID = Products.ProductID "
strSQL &= "WHERE Employees.EmployeeID = " & x & " ORDER BY orderdate DESC"

Dim da As New SqlDataAdapter(strSQL, conn)
da.Fill(ds, "tblDetails")
Return ds.Tables("tblDetails")
End Function

kot tudi funkcija

Function GetAuthors() As DataTable
Dim ds As New DataSet()
Dim conn As New SqlConnection("server=std04;uid=sa;pwd=;database=northwind")
Dim strSQL As String
strSQL = "SELECT lastname, EmployeeID FROM Employees ORDER BY lastname"
Dim da As New SqlDataAdapter(strSQL, conn)
da.Fill(ds, "tblAuthors")
Return ds.Tables("tblAuthors")
End Function



Hvala