ขออนุญาติสอบถามเรื่อง listview Control คือผมต้องการดึงข้อมูลจาก database มาแสดงใน listview เขียน codeแล้วก็ยังไม่แสดงขอคำชี้แนะหน่อยครับ

Private Sub MyShowBill()
        Dim sqlQuery As String = " select Product, Amount, PriceBuy, PriceTotal from vwBill where idbill = '" & FrmCheckBill.idbill & "' "
        Dim sqlDa As New SqlDataAdapter
        Dim sqlComm As New SqlCommand
        Dim Tablelvg As New DataTable
        Dim sqlDs As New DataSet
        With sqlComm
            .CommandText = sqlQuery
            .Connection = sqlConn
        End With
        sqlDa = New SqlDataAdapter(sql, cn)
        sqlDs = New DataSet
        sqlDa.Fill(Tablelvg)
        For i = 0 To Tablelvg.Rows.Count - 1
            
        Dim arr As String() = New String(4) {} 
        Dim itm As ListViewItem 'add items to ListView 
                    arr(0) = Tablelvg.Rows(i)("product").ToString()
                    arr(1) = Tablelvg.Rows(i)("Amount").ToString()
                    arr(2) = Tablelvg.Rows(i)("PriceBuy").ToString() 
                    arr(3) =Tablelvg.Rows(i)("PriceTotal").ToString()
                   itm = New ListViewItem(arr)
                   listView1.Items.Add(itm)

        Next
end sub