How can I display data in a datagridview in vb.net?

Question

I am new here and in the world of programming. What I need to do is fill a datagridview from a query that I make through a method called "DoQuery", which is inside the "SAPbobsCOM" package. I would really appreciate if someone could help me with this. I know that using sql is as simple as putting a "Fill", but they don't work the same way because I don't use a datatable or dataadapter.

Sub llenarGrillaPrueba()
    Dim Count As Long
    Dim i As Long
    Dim RecSet As SAPbobsCOM.Recordset
    RecSet = oCompany.GetBusinessObject(SAPbobsCOM.BoObjectTypes.BoRecordset)

    'RecSet.DoQuery("select ""ItemCode"" from OITM where ""ItemCode""='429'") 'If I only retrieve one record, the grid is loaded.

    RecSet.DoQuery("select * from OITM where ""InvntItem"" = 'Y' ORDER BY ""ItemCode"" ASC") 'The problem arises when I want to show all the records.
    Count = RecSet.RecordCount
    MsgBox(Count)

    While RecSet.EoF = False

        For i = 0 To Count - 1

            DataGridView1.Rows(i).Cells("codigo").Value = RecSet.Fields.Item("ItemCode").Value
            RecSet.MoveNext()
        Next i

    End While

End Sub

Please if anyone can help me I will be very grateful.